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Diffstat (limited to 'bfd/coffcode.h')
| -rw-r--r-- | bfd/coffcode.h | 4318 |
1 files changed, 0 insertions, 4318 deletions
diff --git a/bfd/coffcode.h b/bfd/coffcode.h deleted file mode 100644 index 383719c00c9..00000000000 --- a/bfd/coffcode.h +++ /dev/null @@ -1,4318 +0,0 @@ -/* Support for the generic parts of most COFF variants, for BFD. - Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 1998 - Free Software Foundation, Inc. - Written by Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* -Most of this hacked by Steve Chamberlain, - sac@cygnus.com -*/ -/* - -SECTION - coff backends - - BFD supports a number of different flavours of coff format. - The major differences between formats are the sizes and - alignments of fields in structures on disk, and the occasional - extra field. - - Coff in all its varieties is implemented with a few common - files and a number of implementation specific files. For - example, The 88k bcs coff format is implemented in the file - @file{coff-m88k.c}. This file @code{#include}s - @file{coff/m88k.h} which defines the external structure of the - coff format for the 88k, and @file{coff/internal.h} which - defines the internal structure. @file{coff-m88k.c} also - defines the relocations used by the 88k format - @xref{Relocations}. - - The Intel i960 processor version of coff is implemented in - @file{coff-i960.c}. This file has the same structure as - @file{coff-m88k.c}, except that it includes @file{coff/i960.h} - rather than @file{coff-m88k.h}. - -SUBSECTION - Porting to a new version of coff - - The recommended method is to select from the existing - implementations the version of coff which is most like the one - you want to use. For example, we'll say that i386 coff is - the one you select, and that your coff flavour is called foo. - Copy @file{i386coff.c} to @file{foocoff.c}, copy - @file{../include/coff/i386.h} to @file{../include/coff/foo.h}, - and add the lines to @file{targets.c} and @file{Makefile.in} - so that your new back end is used. Alter the shapes of the - structures in @file{../include/coff/foo.h} so that they match - what you need. You will probably also have to add - @code{#ifdef}s to the code in @file{coff/internal.h} and - @file{coffcode.h} if your version of coff is too wild. - - You can verify that your new BFD backend works quite simply by - building @file{objdump} from the @file{binutils} directory, - and making sure that its version of what's going on and your - host system's idea (assuming it has the pretty standard coff - dump utility, usually called @code{att-dump} or just - @code{dump}) are the same. Then clean up your code, and send - what you've done to Cygnus. Then your stuff will be in the - next release, and you won't have to keep integrating it. - -SUBSECTION - How the coff backend works - -SUBSUBSECTION - File layout - - The Coff backend is split into generic routines that are - applicable to any Coff target and routines that are specific - to a particular target. The target-specific routines are - further split into ones which are basically the same for all - Coff targets except that they use the external symbol format - or use different values for certain constants. - - The generic routines are in @file{coffgen.c}. These routines - work for any Coff target. They use some hooks into the target - specific code; the hooks are in a @code{bfd_coff_backend_data} - structure, one of which exists for each target. - - The essentially similar target-specific routines are in - @file{coffcode.h}. This header file includes executable C code. - The various Coff targets first include the appropriate Coff - header file, make any special defines that are needed, and - then include @file{coffcode.h}. - - Some of the Coff targets then also have additional routines in - the target source file itself. - - For example, @file{coff-i960.c} includes - @file{coff/internal.h} and @file{coff/i960.h}. It then - defines a few constants, such as @code{I960}, and includes - @file{coffcode.h}. Since the i960 has complex relocation - types, @file{coff-i960.c} also includes some code to - manipulate the i960 relocs. This code is not in - @file{coffcode.h} because it would not be used by any other - target. - -SUBSUBSECTION - Bit twiddling - - Each flavour of coff supported in BFD has its own header file - describing the external layout of the structures. There is also - an internal description of the coff layout, in - @file{coff/internal.h}. A major function of the - coff backend is swapping the bytes and twiddling the bits to - translate the external form of the structures into the normal - internal form. This is all performed in the - @code{bfd_swap}_@i{thing}_@i{direction} routines. Some - elements are different sizes between different versions of - coff; it is the duty of the coff version specific include file - to override the definitions of various packing routines in - @file{coffcode.h}. E.g., the size of line number entry in coff is - sometimes 16 bits, and sometimes 32 bits. @code{#define}ing - @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the - correct one. No doubt, some day someone will find a version of - coff which has a varying field size not catered to at the - moment. To port BFD, that person will have to add more @code{#defines}. - Three of the bit twiddling routines are exported to - @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} - and @code{coff_swap_linno_in}. @code{GDB} reads the symbol - table on its own, but uses BFD to fix things up. More of the - bit twiddlers are exported for @code{gas}; - @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, - @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, - @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, - @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track - of all the symbol table and reloc drudgery itself, thereby - saving the internal BFD overhead, but uses BFD to swap things - on the way out, making cross ports much safer. Doing so also - allows BFD (and thus the linker) to use the same header files - as @code{gas}, which makes one avenue to disaster disappear. - -SUBSUBSECTION - Symbol reading - - The simple canonical form for symbols used by BFD is not rich - enough to keep all the information available in a coff symbol - table. The back end gets around this problem by keeping the original - symbol table around, "behind the scenes". - - When a symbol table is requested (through a call to - @code{bfd_canonicalize_symtab}), a request gets through to - @code{coff_get_normalized_symtab}. This reads the symbol table from - the coff file and swaps all the structures inside into the - internal form. It also fixes up all the pointers in the table - (represented in the file by offsets from the first symbol in - the table) into physical pointers to elements in the new - internal table. This involves some work since the meanings of - fields change depending upon context: a field that is a - pointer to another structure in the symbol table at one moment - may be the size in bytes of a structure at the next. Another - pass is made over the table. All symbols which mark file names - (<<C_FILE>> symbols) are modified so that the internal - string points to the value in the auxent (the real filename) - rather than the normal text associated with the symbol - (@code{".file"}). - - At this time the symbol names are moved around. Coff stores - all symbols less than nine characters long physically - within the symbol table; longer strings are kept at the end of - the file in the string table. This pass moves all strings - into memory and replaces them with pointers to the strings. - - - The symbol table is massaged once again, this time to create - the canonical table used by the BFD application. Each symbol - is inspected in turn, and a decision made (using the - @code{sclass} field) about the various flags to set in the - @code{asymbol}. @xref{Symbols}. The generated canonical table - shares strings with the hidden internal symbol table. - - Any linenumbers are read from the coff file too, and attached - to the symbols which own the functions the linenumbers belong to. - -SUBSUBSECTION - Symbol writing - - Writing a symbol to a coff file which didn't come from a coff - file will lose any debugging information. The @code{asymbol} - structure remembers the BFD from which the symbol was taken, and on - output the back end makes sure that the same destination target as - source target is present. - - When the symbols have come from a coff file then all the - debugging information is preserved. - - Symbol tables are provided for writing to the back end in a - vector of pointers to pointers. This allows applications like - the linker to accumulate and output large symbol tables - without having to do too much byte copying. - - This function runs through the provided symbol table and - patches each symbol marked as a file place holder - (@code{C_FILE}) to point to the next file place holder in the - list. It also marks each @code{offset} field in the list with - the offset from the first symbol of the current symbol. - - Another function of this procedure is to turn the canonical - value form of BFD into the form used by coff. Internally, BFD - expects symbol values to be offsets from a section base; so a - symbol physically at 0x120, but in a section starting at - 0x100, would have the value 0x20. Coff expects symbols to - contain their final value, so symbols have their values - changed at this point to reflect their sum with their owning - section. This transformation uses the - <<output_section>> field of the @code{asymbol}'s - @code{asection} @xref{Sections}. - - o <<coff_mangle_symbols>> - - This routine runs though the provided symbol table and uses - the offsets generated by the previous pass and the pointers - generated when the symbol table was read in to create the - structured hierachy required by coff. It changes each pointer - to a symbol into the index into the symbol table of the asymbol. - - o <<coff_write_symbols>> - - This routine runs through the symbol table and patches up the - symbols from their internal form into the coff way, calls the - bit twiddlers, and writes out the table to the file. - -*/ - -/* -INTERNAL_DEFINITION - coff_symbol_type - -DESCRIPTION - The hidden information for an <<asymbol>> is described in a - <<combined_entry_type>>: - -CODE_FRAGMENT -. -.typedef struct coff_ptr_struct -.{ -. -. {* Remembers the offset from the first symbol in the file for -. this symbol. Generated by coff_renumber_symbols. *} -.unsigned int offset; -. -. {* Should the value of this symbol be renumbered. Used for -. XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} -.unsigned int fix_value : 1; -. -. {* Should the tag field of this symbol be renumbered. -. Created by coff_pointerize_aux. *} -.unsigned int fix_tag : 1; -. -. {* Should the endidx field of this symbol be renumbered. -. Created by coff_pointerize_aux. *} -.unsigned int fix_end : 1; -. -. {* Should the x_csect.x_scnlen field be renumbered. -. Created by coff_pointerize_aux. *} -.unsigned int fix_scnlen : 1; -. -. {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the -. index into the line number entries. Set by -. coff_slurp_symbol_table. *} -.unsigned int fix_line : 1; -. -. {* The container for the symbol structure as read and translated -. from the file. *} -. -.union { -. union internal_auxent auxent; -. struct internal_syment syment; -. } u; -.} combined_entry_type; -. -. -.{* Each canonical asymbol really looks like this: *} -. -.typedef struct coff_symbol_struct -.{ -. {* The actual symbol which the rest of BFD works with *} -.asymbol symbol; -. -. {* A pointer to the hidden information for this symbol *} -.combined_entry_type *native; -. -. {* A pointer to the linenumber information for this symbol *} -.struct lineno_cache_entry *lineno; -. -. {* Have the line numbers been relocated yet ? *} -.boolean done_lineno; -.} coff_symbol_type; - - -*/ - -#ifdef COFF_WITH_PE -#include "peicode.h" -#else -#include "coffswap.h" -#endif - -#define STRING_SIZE_SIZE (4) - -static long sec_to_styp_flags PARAMS ((const char *, flagword)); -static flagword styp_to_sec_flags PARAMS ((bfd *, PTR, const char *)); -static boolean coff_bad_format_hook PARAMS ((bfd *, PTR)); -static boolean coff_new_section_hook PARAMS ((bfd *, asection *)); -static boolean coff_set_arch_mach_hook PARAMS ((bfd *, PTR)); -static boolean coff_write_relocs PARAMS ((bfd *, int)); -static boolean coff_set_flags - PARAMS ((bfd *, unsigned int *, unsigned short *)); -static boolean coff_set_arch_mach - PARAMS ((bfd *, enum bfd_architecture, unsigned long)); -static boolean coff_compute_section_file_positions PARAMS ((bfd *)); -static boolean coff_write_object_contents PARAMS ((bfd *)); -static boolean coff_set_section_contents - PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); -static PTR buy_and_read PARAMS ((bfd *, file_ptr, int, size_t)); -static boolean coff_slurp_line_table PARAMS ((bfd *, asection *)); -static boolean coff_slurp_symbol_table PARAMS ((bfd *)); -static boolean coff_slurp_reloc_table PARAMS ((bfd *, asection *, asymbol **)); -static long coff_canonicalize_reloc - PARAMS ((bfd *, asection *, arelent **, asymbol **)); -#ifndef coff_mkobject_hook -static PTR coff_mkobject_hook PARAMS ((bfd *, PTR, PTR)); -#endif - -/* void warning(); */ - -/* - * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the - * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags(). - * NOTE: If you add to/change this routine, you should mirror the changes - * in styp_to_sec_flags(). - */ -static long -sec_to_styp_flags (sec_name, sec_flags) - CONST char *sec_name; - flagword sec_flags; -{ - long styp_flags = 0; - - if (!strcmp (sec_name, _TEXT)) - { - styp_flags = STYP_TEXT; - } - else if (!strcmp (sec_name, _DATA)) - { - styp_flags = STYP_DATA; - } - else if (!strcmp (sec_name, _BSS)) - { - styp_flags = STYP_BSS; -#ifdef _COMMENT - } - else if (!strcmp (sec_name, _COMMENT)) - { - styp_flags = STYP_INFO; -#endif /* _COMMENT */ -#ifdef _LIB - } - else if (!strcmp (sec_name, _LIB)) - { - styp_flags = STYP_LIB; -#endif /* _LIB */ -#ifdef _LIT - } - else if (!strcmp (sec_name, _LIT)) - { - styp_flags = STYP_LIT; -#endif /* _LIT */ - } - else if (!strcmp (sec_name, ".debug")) - { -#ifdef STYP_DEBUG - styp_flags = STYP_DEBUG; -#else - styp_flags = STYP_INFO; -#endif - } - else if (!strncmp (sec_name, ".stab", 5)) - { - styp_flags = STYP_INFO; - } -#ifdef COFF_WITH_PE - else if (!strcmp (sec_name, ".edata")) - { - styp_flags = STYP_DATA; - } -#endif -#ifdef RS6000COFF_C - else if (!strcmp (sec_name, _PAD)) - { - styp_flags = STYP_PAD; - } - else if (!strcmp (sec_name, _LOADER)) - { - styp_flags = STYP_LOADER; - } -#endif - /* Try and figure out what it should be */ - else if (sec_flags & SEC_CODE) - { - styp_flags = STYP_TEXT; - } - else if (sec_flags & SEC_DATA) - { - styp_flags = STYP_DATA; - } - else if (sec_flags & SEC_READONLY) - { -#ifdef STYP_LIT /* 29k readonly text/data section */ - styp_flags = STYP_LIT; -#else - styp_flags = STYP_TEXT; -#endif /* STYP_LIT */ - } - else if (sec_flags & SEC_LOAD) - { - styp_flags = STYP_TEXT; - } - else if (sec_flags & SEC_ALLOC) - { - styp_flags = STYP_BSS; - } - -#ifdef STYP_NOLOAD - if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) - styp_flags |= STYP_NOLOAD; -#endif - -#ifdef COFF_WITH_PE - if (sec_flags & SEC_LINK_ONCE) - styp_flags |= IMAGE_SCN_LNK_COMDAT; -#endif - - return (styp_flags); -} -/* - * Return a word with SEC_* flags set to represent the incoming - * STYP_* flags (from scnhdr.s_flags). The inverse of this - * function is sec_to_styp_flags(). - * NOTE: If you add to/change this routine, you should mirror the changes - * in sec_to_styp_flags(). - */ -static flagword -styp_to_sec_flags (abfd, hdr, name) - bfd *abfd; - PTR hdr; - const char *name; -{ - struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; - long styp_flags = internal_s->s_flags; - flagword sec_flags = 0; - -#ifdef STYP_NOLOAD - if (styp_flags & STYP_NOLOAD) - { - sec_flags |= SEC_NEVER_LOAD; - } -#endif /* STYP_NOLOAD */ - - /* For 386 COFF, at least, an unloadable text or data section is - actually a shared library section. */ - if (styp_flags & STYP_TEXT) - { - if (sec_flags & SEC_NEVER_LOAD) - sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; - else - sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; - } - else if (styp_flags & STYP_DATA) - { - if (sec_flags & SEC_NEVER_LOAD) - sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; - else - sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; - } - else if (styp_flags & STYP_BSS) - { -#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY - if (sec_flags & SEC_NEVER_LOAD) - sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; - else -#endif - sec_flags |= SEC_ALLOC; - } - else if (styp_flags & STYP_INFO) - { - /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is - defined. coff_compute_section_file_positions uses - COFF_PAGE_SIZE to ensure that the low order bits of the - section VMA and the file offset match. If we don't know - COFF_PAGE_SIZE, we can't ensure the correct correspondence, - and demand page loading of the file will fail. */ -#if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS) - sec_flags |= SEC_DEBUGGING; -#endif - } - else if (styp_flags & STYP_PAD) - { - sec_flags = 0; - } - else if (strcmp (name, _TEXT) == 0) - { - if (sec_flags & SEC_NEVER_LOAD) - sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; - else - sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; - } - else if (strcmp (name, _DATA) == 0) - { - if (sec_flags & SEC_NEVER_LOAD) - sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; - else - sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; - } - else if (strcmp (name, _BSS) == 0) - { -#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY - if (sec_flags & SEC_NEVER_LOAD) - sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; - else -#endif - sec_flags |= SEC_ALLOC; - } - else if (strcmp (name, ".debug") == 0 -#ifdef _COMMENT - || strcmp (name, _COMMENT) == 0 -#endif - || strncmp (name, ".stab", 5) == 0) - { -#ifdef COFF_PAGE_SIZE - sec_flags |= SEC_DEBUGGING; -#endif - } -#ifdef _LIB - else if (strcmp (name, _LIB) == 0) - ; -#endif -#ifdef _LIT - else if (strcmp (name, _LIT) == 0) - { - sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; - } -#endif - else - { - sec_flags |= SEC_ALLOC | SEC_LOAD; - } - -#ifdef STYP_LIT /* A29k readonly text/data section type */ - if ((styp_flags & STYP_LIT) == STYP_LIT) - { - sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); - } -#endif /* STYP_LIT */ -#ifdef STYP_OTHER_LOAD /* Other loaded sections */ - if (styp_flags & STYP_OTHER_LOAD) - { - sec_flags = (SEC_LOAD | SEC_ALLOC); - } -#endif /* STYP_SDATA */ - -#ifdef COFF_WITH_PE - if (styp_flags & IMAGE_SCN_LNK_REMOVE) - sec_flags |= SEC_EXCLUDE; - - if (styp_flags & IMAGE_SCN_LNK_COMDAT) - { - sec_flags |= SEC_LINK_ONCE; - - /* Unfortunately, the PE format stores essential information in - the symbol table, of all places. We need to extract that - information now, so that objdump and the linker will know how - to handle the section without worrying about the symbols. We - can't call slurp_symtab, because the linker doesn't want the - swapped symbols. */ - - if (_bfd_coff_get_external_symbols (abfd)) - { - bfd_byte *esym, *esymend; - - esym = (bfd_byte *) obj_coff_external_syms (abfd); - esymend = esym + obj_raw_syment_count (abfd) * SYMESZ; - - while (esym < esymend) - { - struct internal_syment isym; - - bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym); - - if (sizeof (internal_s->s_name) > SYMNMLEN) - { - /* This case implies that the matching symbol name - will be in the string table. */ - abort (); - } - - if (isym.n_sclass == C_STAT - && isym.n_type == T_NULL - && isym.n_numaux == 1) - { - char buf[SYMNMLEN + 1]; - const char *symname; - - symname = _bfd_coff_internal_syment_name (abfd, &isym, buf); - if (symname == NULL) - abort (); - - if (strcmp (name, symname) == 0) - { - union internal_auxent aux; - - /* This is the section symbol. */ - - bfd_coff_swap_aux_in (abfd, (PTR) (esym + SYMESZ), - isym.n_type, isym.n_sclass, - 0, isym.n_numaux, (PTR) &aux); - - switch (aux.x_scn.x_comdat) - { - case IMAGE_COMDAT_SELECT_NODUPLICATES: - sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY; - break; - - default: - case IMAGE_COMDAT_SELECT_ANY: - sec_flags |= SEC_LINK_DUPLICATES_DISCARD; - break; - - case IMAGE_COMDAT_SELECT_SAME_SIZE: - sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE; - break; - - case IMAGE_COMDAT_SELECT_EXACT_MATCH: - sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS; - break; - - case IMAGE_COMDAT_SELECT_ASSOCIATIVE: - /* FIXME: This is not currently implemented. */ - sec_flags |= SEC_LINK_DUPLICATES_DISCARD; - break; - } - - break; - } - } - - esym += (isym.n_numaux + 1) * SYMESZ; - } - } - } -#endif - - return (sec_flags); -} - -#define get_index(symbol) ((symbol)->udata.i) - -/* -INTERNAL_DEFINITION - bfd_coff_backend_data - -CODE_FRAGMENT - -Special entry points for gdb to swap in coff symbol table parts: -.typedef struct -.{ -. void (*_bfd_coff_swap_aux_in) PARAMS (( -. bfd *abfd, -. PTR ext, -. int type, -. int class, -. int indaux, -. int numaux, -. PTR in)); -. -. void (*_bfd_coff_swap_sym_in) PARAMS (( -. bfd *abfd , -. PTR ext, -. PTR in)); -. -. void (*_bfd_coff_swap_lineno_in) PARAMS (( -. bfd *abfd, -. PTR ext, -. PTR in)); -. - -Special entry points for gas to swap out coff parts: - -. unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( -. bfd *abfd, -. PTR in, -. int type, -. int class, -. int indaux, -. int numaux, -. PTR ext)); -. -. unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( -. bfd *abfd, -. PTR in, -. PTR ext)); -. -. unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( -. bfd *abfd, -. PTR in, -. PTR ext)); -. -. unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( -. bfd *abfd, -. PTR src, -. PTR dst)); -. -. unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( -. bfd *abfd, -. PTR in, -. PTR out)); -. -. unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( -. bfd *abfd, -. PTR in, -. PTR out)); -. -. unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( -. bfd *abfd, -. PTR in, -. PTR out)); -. - -Special entry points for generic COFF routines to call target -dependent COFF routines: - -. unsigned int _bfd_filhsz; -. unsigned int _bfd_aoutsz; -. unsigned int _bfd_scnhsz; -. unsigned int _bfd_symesz; -. unsigned int _bfd_auxesz; -. unsigned int _bfd_relsz; -. unsigned int _bfd_linesz; -. boolean _bfd_coff_long_filenames; -. boolean _bfd_coff_long_section_names; -. unsigned int _bfd_coff_default_section_alignment_power; -. void (*_bfd_coff_swap_filehdr_in) PARAMS (( -. bfd *abfd, -. PTR ext, -. PTR in)); -. void (*_bfd_coff_swap_aouthdr_in) PARAMS (( -. bfd *abfd, -. PTR ext, -. PTR in)); -. void (*_bfd_coff_swap_scnhdr_in) PARAMS (( -. bfd *abfd, -. PTR ext, -. PTR in)); -. void (*_bfd_coff_swap_reloc_in) PARAMS (( -. bfd *abfd, -. PTR ext, -. PTR in)); -. boolean (*_bfd_coff_bad_format_hook) PARAMS (( -. bfd *abfd, -. PTR internal_filehdr)); -. boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( -. bfd *abfd, -. PTR internal_filehdr)); -. PTR (*_bfd_coff_mkobject_hook) PARAMS (( -. bfd *abfd, -. PTR internal_filehdr, -. PTR internal_aouthdr)); -. flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( -. bfd *abfd, -. PTR internal_scnhdr, -. const char *name)); -. void (*_bfd_set_alignment_hook) PARAMS (( -. bfd *abfd, -. asection *sec, -. PTR internal_scnhdr)); -. boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( -. bfd *abfd)); -. boolean (*_bfd_coff_symname_in_debug) PARAMS (( -. bfd *abfd, -. struct internal_syment *sym)); -. boolean (*_bfd_coff_pointerize_aux_hook) PARAMS (( -. bfd *abfd, -. combined_entry_type *table_base, -. combined_entry_type *symbol, -. unsigned int indaux, -. combined_entry_type *aux)); -. boolean (*_bfd_coff_print_aux) PARAMS (( -. bfd *abfd, -. FILE *file, -. combined_entry_type *table_base, -. combined_entry_type *symbol, -. combined_entry_type *aux, -. unsigned int indaux)); -. void (*_bfd_coff_reloc16_extra_cases) PARAMS (( -. bfd *abfd, -. struct bfd_link_info *link_info, -. struct bfd_link_order *link_order, -. arelent *reloc, -. bfd_byte *data, -. unsigned int *src_ptr, -. unsigned int *dst_ptr)); -. int (*_bfd_coff_reloc16_estimate) PARAMS (( -. bfd *abfd, -. asection *input_section, -. arelent *r, -. unsigned int shrink, -. struct bfd_link_info *link_info)); -. boolean (*_bfd_coff_sym_is_global) PARAMS (( -. bfd *abfd, -. struct internal_syment *)); -. boolean (*_bfd_coff_compute_section_file_positions) PARAMS (( -. bfd *abfd)); -. boolean (*_bfd_coff_start_final_link) PARAMS (( -. bfd *output_bfd, -. struct bfd_link_info *info)); -. boolean (*_bfd_coff_relocate_section) PARAMS (( -. bfd *output_bfd, -. struct bfd_link_info *info, -. bfd *input_bfd, -. asection *input_section, -. bfd_byte *contents, -. struct internal_reloc *relocs, -. struct internal_syment *syms, -. asection **sections)); -. reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS (( -. bfd *abfd, -. asection *sec, -. struct internal_reloc *rel, -. struct coff_link_hash_entry *h, -. struct internal_syment *sym, -. bfd_vma *addendp)); -. boolean (*_bfd_coff_adjust_symndx) PARAMS (( -. bfd *obfd, -. struct bfd_link_info *info, -. bfd *ibfd, -. asection *sec, -. struct internal_reloc *reloc, -. boolean *adjustedp)); -. boolean (*_bfd_coff_link_add_one_symbol) PARAMS (( -. struct bfd_link_info *info, -. bfd *abfd, -. const char *name, -. flagword flags, -. asection *section, -. bfd_vma value, -. const char *string, -. boolean copy, -. boolean collect, -. struct bfd_link_hash_entry **hashp)); -. -. boolean (*_bfd_coff_link_output_has_begun) PARAMS (( -. bfd * abfd, -. struct coff_final_link_info * pfinfo)); -. boolean (*_bfd_coff_final_link_postscript) PARAMS (( -. bfd * abfd, -. struct coff_final_link_info * pfinfo)); -. -.} bfd_coff_backend_data; -. -.#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) -. -.#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ -. ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) -. -.#define bfd_coff_swap_sym_in(a,e,i) \ -. ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) -. -.#define bfd_coff_swap_lineno_in(a,e,i) \ -. ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) -. -.#define bfd_coff_swap_reloc_out(abfd, i, o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) -. -.#define bfd_coff_swap_lineno_out(abfd, i, o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) -. -.#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ -. ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) -. -.#define bfd_coff_swap_sym_out(abfd, i,o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) -. -.#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) -. -.#define bfd_coff_swap_filehdr_out(abfd, i,o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) -. -.#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) -. -.#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) -.#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) -.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) -.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) -.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) -.#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) -.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) -.#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) -.#define bfd_coff_long_section_names(abfd) \ -. (coff_backend_info (abfd)->_bfd_coff_long_section_names) -.#define bfd_coff_default_section_alignment_power(abfd) \ -. (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) -.#define bfd_coff_swap_filehdr_in(abfd, i,o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) -. -.#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) -. -.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) -. -.#define bfd_coff_swap_reloc_in(abfd, i, o) \ -. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) -. -.#define bfd_coff_bad_format_hook(abfd, filehdr) \ -. ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) -. -.#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ -. ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) -.#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ -. ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) -. -.#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\ -. ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name)) -. -.#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ -. ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) -. -.#define bfd_coff_slurp_symbol_table(abfd)\ -. ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) -. -.#define bfd_coff_symname_in_debug(abfd, sym)\ -. ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) -. -.#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ -. ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ -. (abfd, file, base, symbol, aux, indaux)) -. -.#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\ -. ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ -. (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) -. -.#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ -. ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ -. (abfd, section, reloc, shrink, link_info)) -. -.#define bfd_coff_sym_is_global(abfd, sym)\ -. ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\ -. (abfd, sym)) -. -.#define bfd_coff_compute_section_file_positions(abfd)\ -. ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ -. (abfd)) -. -.#define bfd_coff_start_final_link(obfd, info)\ -. ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ -. (obfd, info)) -.#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ -. ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ -. (obfd, info, ibfd, o, con, rel, isyms, secs)) -.#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ -. ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ -. (abfd, sec, rel, h, sym, addendp)) -.#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ -. ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ -. (obfd, info, ibfd, sec, rel, adjustedp)) -.#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\ -. ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ -. (info, abfd, name, flags, section, value, string, cp, coll, hashp)) -. -.#define bfd_coff_link_output_has_begun(a,p) \ -. ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p)) -.#define bfd_coff_final_link_postscript(a,p) \ -. ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p)) -. -*/ - -/* See whether the magic number matches. */ - -static boolean -coff_bad_format_hook (abfd, filehdr) - bfd * abfd; - PTR filehdr; -{ - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - - if (BADMAG (*internal_f)) - return false; - - /* if the optional header is NULL or not the correct size then - quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) - and Intel 960 readwrite headers (I960WRMAGIC) is that the - optional header is of a different size. - - But the mips keeps extra stuff in it's opthdr, so dont check - when doing that - */ - -#if defined(M88) || defined(I960) - if (internal_f->f_opthdr != 0 && AOUTSZ != internal_f->f_opthdr) - return false; -#endif - - return true; -} - -/* - initialize a section structure with information peculiar to this - particular implementation of coff -*/ - -static boolean -coff_new_section_hook (abfd, section) - bfd * abfd; - asection * section; -{ - combined_entry_type *native; - - section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; - -#ifdef RS6000COFF_C - if (xcoff_data (abfd)->text_align_power != 0 - && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) - section->alignment_power = xcoff_data (abfd)->text_align_power; - if (xcoff_data (abfd)->data_align_power != 0 - && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) - section->alignment_power = xcoff_data (abfd)->data_align_power; -#endif - - /* Allocate aux records for section symbols, to store size and - related info. - - @@ The 10 is a guess at a plausible maximum number of aux entries - (but shouldn't be a constant). */ - native = ((combined_entry_type *) - bfd_zalloc (abfd, sizeof (combined_entry_type) * 10)); - if (native == NULL) - return false; - - /* We don't need to set up n_name, n_value, or n_scnum in the native - symbol information, since they'll be overriden by the BFD symbol - anyhow. However, we do need to set the type and storage class, - in case this symbol winds up getting written out. The value 0 - for n_numaux is already correct. */ - - native->u.syment.n_type = T_NULL; - native->u.syment.n_sclass = C_STAT; - - coffsymbol (section->symbol)->native = native; - - /* The .stab section must be aligned to 2**2 at most, because - otherwise there may be gaps in the section which gdb will not - know how to interpret. Examining the section name is a hack, but - that is also how gdb locates the section. - We need to handle the .ctors and .dtors sections similarly, to - avoid introducing null words in the tables. */ - if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 2 - && (strncmp (section->name, ".stab", 5) == 0 - || strcmp (section->name, ".ctors") == 0 - || strcmp (section->name, ".dtors") == 0)) - section->alignment_power = 2; - - /* Similarly, the .stabstr section must be aligned to 2**0 at most. */ - if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 0 - && strncmp (section->name, ".stabstr", 8) == 0) - section->alignment_power = 0; - - return true; -} - -#ifdef COFF_ALIGN_IN_SECTION_HEADER - -/* Set the alignment of a BFD section. */ - -static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); - -static void -coff_set_alignment_hook (abfd, section, scnhdr) - bfd * abfd; - asection * section; - PTR scnhdr; -{ - struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; - unsigned int i; - -#ifdef I960 - /* Extract ALIGN from 2**ALIGN stored in section header */ - for (i = 0; i < 32; i++) - if ((1 << i) >= hdr->s_align) - break; -#endif -#ifdef TIC80COFF - /* TI tools hijack bits 8-11 for the alignment */ - i = (hdr->s_flags >> 8) & 0xF ; -#endif - section->alignment_power = i; -} - -#else /* ! COFF_ALIGN_IN_SECTION_HEADER */ -#ifdef COFF_WITH_PE - -/* a couple of macros to help setting the alignment power field */ -#define ALIGN_SET(field,x,y) \ - if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\ - {\ - section->alignment_power = y;\ - } - -#define ELIFALIGN_SET(field,x,y) \ - else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \ - {\ - section->alignment_power = y;\ - } - -static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); - -static void -coff_set_alignment_hook (abfd, section, scnhdr) - bfd * abfd; - asection * section; - PTR scnhdr; -{ - struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; - - ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6) - ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5) - ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4) - ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3) - ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2) - ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1) - ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0) - -#ifdef POWERPC_LE_PE - if (strcmp (section->name, ".idata$2") == 0) - { - section->alignment_power = 0; - } - else if (strcmp (section->name, ".idata$3") == 0) - { - section->alignment_power = 0; - } - else if (strcmp (section->name, ".idata$4") == 0) - { - section->alignment_power = 2; - } - else if (strcmp (section->name, ".idata$5") == 0) - { - section->alignment_power = 2; - } - else if (strcmp (section->name, ".idata$6") == 0) - { - section->alignment_power = 1; - } - else if (strcmp (section->name, ".reloc") == 0) - { - section->alignment_power = 1; - } - else if (strncmp (section->name, ".stab", 5) == 0) - { - section->alignment_power = 2; - } -#endif - -#ifdef COFF_IMAGE_WITH_PE - /* In a PE image file, the s_paddr field holds the virtual size of a - section, while the s_size field holds the raw size. */ - if (hdr->s_paddr != 0) - { - if (coff_section_data (abfd, section) == NULL) - { - section->used_by_bfd = - (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata)); - if (section->used_by_bfd == NULL) - { - /* FIXME: Return error. */ - abort (); - } - } - if (pei_section_data (abfd, section) == NULL) - { - coff_section_data (abfd, section)->tdata = - (PTR) bfd_zalloc (abfd, sizeof (struct pei_section_tdata)); - if (coff_section_data (abfd, section)->tdata == NULL) - { - /* FIXME: Return error. */ - abort (); - } - } - pei_section_data (abfd, section)->virt_size = hdr->s_paddr; - } -#endif - -} -#undef ALIGN_SET -#undef ELIFALIGN_SET - -#else /* ! COFF_WITH_PE */ -#ifdef RS6000COFF_C - -/* We grossly abuse this function to handle XCOFF overflow headers. - When we see one, we correct the reloc and line number counts in the - real header, and remove the section we just created. */ - -static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); - -static void -coff_set_alignment_hook (abfd, section, scnhdr) - bfd *abfd; - asection *section; - PTR scnhdr; -{ - struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; - asection *real_sec; - asection **ps; - - if ((hdr->s_flags & STYP_OVRFLO) == 0) - return; - - real_sec = coff_section_from_bfd_index (abfd, hdr->s_nreloc); - if (real_sec == NULL) - return; - - real_sec->reloc_count = hdr->s_paddr; - real_sec->lineno_count = hdr->s_vaddr; - - for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next) - { - if (*ps == section) - { - *ps = (*ps)->next; - --abfd->section_count; - break; - } - } -} - -#else /* ! RS6000COFF_C */ - -#define coff_set_alignment_hook \ - ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) - -#endif /* ! RS6000COFF_C */ -#endif /* ! COFF_WITH_PE */ -#endif /* ! COFF_ALIGN_IN_SECTION_HEADER */ - -#ifndef coff_mkobject - -static boolean coff_mkobject PARAMS ((bfd *)); - -static boolean -coff_mkobject (abfd) - bfd * abfd; -{ - coff_data_type *coff; - - abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type)); - if (abfd->tdata.coff_obj_data == 0) - return false; - coff = coff_data (abfd); - coff->symbols = (coff_symbol_type *) NULL; - coff->conversion_table = (unsigned int *) NULL; - coff->raw_syments = (struct coff_ptr_struct *) NULL; - coff->relocbase = 0; - coff->local_toc_sym_map = 0; - -/* make_abs_section(abfd);*/ - - return true; -} -#endif - -/* Create the COFF backend specific information. */ -#ifndef coff_mkobject_hook -static PTR -coff_mkobject_hook (abfd, filehdr, aouthdr) - bfd * abfd; - PTR filehdr; - PTR aouthdr; -{ - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - coff_data_type *coff; - - if (coff_mkobject (abfd) == false) - return NULL; - - coff = coff_data (abfd); - - coff->sym_filepos = internal_f->f_symptr; - - /* These members communicate important constants about the symbol - table to GDB's symbol-reading code. These `constants' - unfortunately vary among coff implementations... */ - coff->local_n_btmask = N_BTMASK; - coff->local_n_btshft = N_BTSHFT; - coff->local_n_tmask = N_TMASK; - coff->local_n_tshift = N_TSHIFT; - coff->local_symesz = SYMESZ; - coff->local_auxesz = AUXESZ; - coff->local_linesz = LINESZ; - - obj_raw_syment_count (abfd) = - obj_conv_table_size (abfd) = - internal_f->f_nsyms; - -#ifdef RS6000COFF_C - if ((internal_f->f_flags & F_SHROBJ) != 0) - abfd->flags |= DYNAMIC; - if (aouthdr != NULL && internal_f->f_opthdr >= AOUTSZ) - { - struct internal_aouthdr *internal_a = - (struct internal_aouthdr *) aouthdr; - struct xcoff_tdata *xcoff; - - xcoff = xcoff_data (abfd); - xcoff->full_aouthdr = true; - xcoff->toc = internal_a->o_toc; - xcoff->sntoc = internal_a->o_sntoc; - xcoff->snentry = internal_a->o_snentry; - xcoff->text_align_power = internal_a->o_algntext; - xcoff->data_align_power = internal_a->o_algndata; - xcoff->modtype = internal_a->o_modtype; - xcoff->cputype = internal_a->o_cputype; - xcoff->maxdata = internal_a->o_maxdata; - xcoff->maxstack = internal_a->o_maxstack; - } -#endif - -#ifdef ARM - /* Set the flags field from the COFF header read in */ - if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) - coff->flags = 0; -#endif - - return (PTR) coff; -} -#endif - -/* Determine the machine architecture and type. FIXME: This is target - dependent because the magic numbers are defined in the target - dependent header files. But there is no particular need for this. - If the magic numbers were moved to a separate file, this function - would be target independent and would also be much more successful - at linking together COFF files for different architectures. */ - -static boolean -coff_set_arch_mach_hook (abfd, filehdr) - bfd *abfd; - PTR filehdr; -{ - long machine; - enum bfd_architecture arch; - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - - machine = 0; - switch (internal_f->f_magic) - { -#ifdef PPCMAGIC - case PPCMAGIC: - arch = bfd_arch_powerpc; - machine = 0; /* what does this mean? (krk) */ - break; -#endif -#ifdef I386MAGIC - case I386MAGIC: - case I386PTXMAGIC: - case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ - case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */ - arch = bfd_arch_i386; - machine = 0; - break; -#endif -#ifdef A29K_MAGIC_BIG - case A29K_MAGIC_BIG: - case A29K_MAGIC_LITTLE: - arch = bfd_arch_a29k; - machine = 0; - break; -#endif -#ifdef ARMMAGIC - case ARMMAGIC: - arch = bfd_arch_arm; - switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK) - { - case F_ARM_2: machine = bfd_mach_arm_2; break; - case F_ARM_3: machine = bfd_mach_arm_3; break; - default: - case F_ARM_4: machine = bfd_mach_arm_4; break; - case F_ARM_4T: machine = bfd_mach_arm_4T; break; - } - break; -#endif -#ifdef MC68MAGIC - case MC68MAGIC: - case M68MAGIC: -#ifdef MC68KBCSMAGIC - case MC68KBCSMAGIC: -#endif -#ifdef APOLLOM68KMAGIC - case APOLLOM68KMAGIC: -#endif -#ifdef LYNXCOFFMAGIC - case LYNXCOFFMAGIC: -#endif - arch = bfd_arch_m68k; - machine = bfd_mach_m68020; - break; -#endif -#ifdef MC88MAGIC - case MC88MAGIC: - case MC88DMAGIC: - case MC88OMAGIC: - arch = bfd_arch_m88k; - machine = 88100; - break; -#endif -#ifdef Z8KMAGIC - case Z8KMAGIC: - arch = bfd_arch_z8k; - switch (internal_f->f_flags & F_MACHMASK) - { - case F_Z8001: - machine = bfd_mach_z8001; - break; - case F_Z8002: - machine = bfd_mach_z8002; - break; - default: - return false; - } - break; -#endif -#ifdef I860 - case I860MAGIC: - arch = bfd_arch_i860; - break; -#endif -#ifdef I960 -#ifdef I960ROMAGIC - case I960ROMAGIC: - case I960RWMAGIC: - arch = bfd_arch_i960; - switch (F_I960TYPE & internal_f->f_flags) - { - default: - case F_I960CORE: - machine = bfd_mach_i960_core; - break; - case F_I960KB: - machine = bfd_mach_i960_kb_sb; - break; - case F_I960MC: - machine = bfd_mach_i960_mc; - break; - case F_I960XA: - machine = bfd_mach_i960_xa; - break; - case F_I960CA: - machine = bfd_mach_i960_ca; - break; - case F_I960KA: - machine = bfd_mach_i960_ka_sa; - break; - case F_I960JX: - machine = bfd_mach_i960_jx; - break; - case F_I960HX: - machine = bfd_mach_i960_hx; - break; - } - break; -#endif -#endif - -#ifdef RS6000COFF_C - case U802ROMAGIC: - case U802WRMAGIC: - case U802TOCMAGIC: - { - int cputype; - - if (xcoff_data (abfd)->cputype != -1) - cputype = xcoff_data (abfd)->cputype & 0xff; - else - { - /* We did not get a value from the a.out header. If the - file has not been stripped, we may be able to get the - architecture information from the first symbol, if it - is a .file symbol. */ - if (obj_raw_syment_count (abfd) == 0) - cputype = 0; - else - { - bfd_byte buf[SYMESZ]; - struct internal_syment sym; - - if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 - || bfd_read (buf, 1, SYMESZ, abfd) != SYMESZ) - return false; - coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym); - if (sym.n_sclass == C_FILE) - cputype = sym.n_type & 0xff; - else - cputype = 0; - } - } - - /* FIXME: We don't handle all cases here. */ - switch (cputype) - { - default: - case 0: -#ifdef POWERMAC - /* PowerPC Macs use the same magic numbers as RS/6000 - (because that's how they were bootstrapped originally), - but they are always PowerPC architecture. */ - arch = bfd_arch_powerpc; - machine = 0; -#else - arch = bfd_arch_rs6000; - machine = 6000; -#endif /* POWERMAC */ - break; - - case 1: - arch = bfd_arch_powerpc; - machine = 601; - break; - case 2: /* 64 bit PowerPC */ - arch = bfd_arch_powerpc; - machine = 620; - break; - case 3: - arch = bfd_arch_powerpc; - machine = 0; - break; - case 4: - arch = bfd_arch_rs6000; - machine = 6000; - break; - } - } - break; -#endif - -#ifdef WE32KMAGIC - case WE32KMAGIC: - arch = bfd_arch_we32k; - machine = 0; - break; -#endif - -#ifdef H8300MAGIC - case H8300MAGIC: - arch = bfd_arch_h8300; - machine = bfd_mach_h8300; - /* !! FIXME this probably isn't the right place for this */ - abfd->flags |= BFD_IS_RELAXABLE; - break; -#endif - -#ifdef H8300HMAGIC - case H8300HMAGIC: - arch = bfd_arch_h8300; - machine = bfd_mach_h8300h; - /* !! FIXME this probably isn't the right place for this */ - abfd->flags |= BFD_IS_RELAXABLE; - break; -#endif - -#ifdef H8300SMAGIC - case H8300SMAGIC: - arch = bfd_arch_h8300; - machine = bfd_mach_h8300s; - /* !! FIXME this probably isn't the right place for this */ - abfd->flags |= BFD_IS_RELAXABLE; - break; -#endif - -#ifdef SH_ARCH_MAGIC_BIG - case SH_ARCH_MAGIC_BIG: - case SH_ARCH_MAGIC_LITTLE: - arch = bfd_arch_sh; - machine = 0; - break; -#endif - -#ifdef H8500MAGIC - case H8500MAGIC: - arch = bfd_arch_h8500; - machine = 0; - break; -#endif - -#ifdef SPARCMAGIC - case SPARCMAGIC: -#ifdef LYNXCOFFMAGIC - case LYNXCOFFMAGIC: -#endif - arch = bfd_arch_sparc; - machine = 0; - break; -#endif - -#ifdef TIC30MAGIC - case TIC30MAGIC: - arch = bfd_arch_tic30; - break; -#endif - -#ifdef TIC80_ARCH_MAGIC - case TIC80_ARCH_MAGIC: - arch = bfd_arch_tic80; - break; -#endif - -#ifdef MCOREMAGIC - case MCOREMAGIC: - arch = bfd_arch_mcore; - break; -#endif - default: /* Unreadable input file type */ - arch = bfd_arch_obscure; - break; - } - - bfd_default_set_arch_mach (abfd, arch, machine); - return true; -} - -#ifdef SYMNAME_IN_DEBUG - -static boolean symname_in_debug_hook - PARAMS ((bfd *, struct internal_syment *)); - -static boolean -symname_in_debug_hook (abfd, sym) - bfd * abfd; - struct internal_syment *sym; -{ - return SYMNAME_IN_DEBUG (sym) ? true : false; -} - -#else - -#define symname_in_debug_hook \ - (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false - -#endif - -#ifdef RS6000COFF_C - -/* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */ - -static boolean coff_pointerize_aux_hook - PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, - unsigned int, combined_entry_type *)); - -/*ARGSUSED*/ -static boolean -coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) - bfd *abfd; - combined_entry_type *table_base; - combined_entry_type *symbol; - unsigned int indaux; - combined_entry_type *aux; -{ - int class = symbol->u.syment.n_sclass; - - if ((class == C_EXT || class == C_HIDEXT) - && indaux + 1 == symbol->u.syment.n_numaux) - { - if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) - { - aux->u.auxent.x_csect.x_scnlen.p = - table_base + aux->u.auxent.x_csect.x_scnlen.l; - aux->fix_scnlen = 1; - } - - /* Return true to indicate that the caller should not do any - further work on this auxent. */ - return true; - } - - /* Return false to indicate that this auxent should be handled by - the caller. */ - return false; -} - -#else -#ifdef I960 - -/* We don't want to pointerize bal entries. */ - -static boolean coff_pointerize_aux_hook - PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, - unsigned int, combined_entry_type *)); - -/*ARGSUSED*/ -static boolean -coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) - bfd *abfd; - combined_entry_type *table_base; - combined_entry_type *symbol; - unsigned int indaux; - combined_entry_type *aux; -{ - /* Return true if we don't want to pointerize this aux entry, which - is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ - return (indaux == 1 - && (symbol->u.syment.n_sclass == C_LEAFPROC - || symbol->u.syment.n_sclass == C_LEAFSTAT - || symbol->u.syment.n_sclass == C_LEAFEXT)); -} - -#else /* ! I960 */ - -#define coff_pointerize_aux_hook 0 - -#endif /* ! I960 */ -#endif /* ! RS6000COFF_C */ - -/* Print an aux entry. This returns true if it has printed it. */ - -static boolean coff_print_aux - PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, - combined_entry_type *, unsigned int)); - -static boolean -coff_print_aux (abfd, file, table_base, symbol, aux, indaux) - bfd *abfd; - FILE *file; - combined_entry_type *table_base; - combined_entry_type *symbol; - combined_entry_type *aux; - unsigned int indaux; -{ -#ifdef RS6000COFF_C - if ((symbol->u.syment.n_sclass == C_EXT - || symbol->u.syment.n_sclass == C_HIDEXT) - && indaux + 1 == symbol->u.syment.n_numaux) - { - /* This is a csect entry. */ - fprintf (file, "AUX "); - if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) - { - BFD_ASSERT (! aux->fix_scnlen); - fprintf (file, "val %5ld", aux->u.auxent.x_csect.x_scnlen.l); - } - else - { - fprintf (file, "indx "); - if (! aux->fix_scnlen) - fprintf (file, "%4ld", aux->u.auxent.x_csect.x_scnlen.l); - else - fprintf (file, "%4ld", - (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); - } - fprintf (file, - " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", - aux->u.auxent.x_csect.x_parmhash, - (unsigned int) aux->u.auxent.x_csect.x_snhash, - SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), - SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), - (unsigned int) aux->u.auxent.x_csect.x_smclas, - aux->u.auxent.x_csect.x_stab, - (unsigned int) aux->u.auxent.x_csect.x_snstab); - return true; - } -#endif - - /* Return false to indicate that no special action was taken. */ - return false; -} - -/* -SUBSUBSECTION - Writing relocations - - To write relocations, the back end steps though the - canonical relocation table and create an - @code{internal_reloc}. The symbol index to use is removed from - the @code{offset} field in the symbol table supplied. The - address comes directly from the sum of the section base - address and the relocation offset; the type is dug directly - from the howto field. Then the @code{internal_reloc} is - swapped into the shape of an @code{external_reloc} and written - out to disk. - -*/ - -#ifdef TARG_AUX - -static int compare_arelent_ptr PARAMS ((const PTR, const PTR)); - -/* AUX's ld wants relocations to be sorted */ -static int -compare_arelent_ptr (x, y) - const PTR x; - const PTR y; -{ - const arelent **a = (const arelent **) x; - const arelent **b = (const arelent **) y; - bfd_size_type aadr = (*a)->address; - bfd_size_type badr = (*b)->address; - - return (aadr < badr ? -1 : badr < aadr ? 1 : 0); -} - -#endif /* TARG_AUX */ - -static boolean -coff_write_relocs (abfd, first_undef) - bfd * abfd; - int first_undef; -{ - asection *s; - - for (s = abfd->sections; s != (asection *) NULL; s = s->next) - { - unsigned int i; - struct external_reloc dst; - arelent **p; - -#ifndef TARG_AUX - p = s->orelocation; -#else - /* sort relocations before we write them out */ - p = (arelent **) bfd_malloc (s->reloc_count * sizeof (arelent *)); - if (p == NULL && s->reloc_count > 0) - return false; - memcpy (p, s->orelocation, s->reloc_count * sizeof (arelent *)); - qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr); -#endif - - if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) - return false; - for (i = 0; i < s->reloc_count; i++) - { - struct internal_reloc n; - arelent *q = p[i]; - memset ((PTR) & n, 0, sizeof (n)); - - /* Now we've renumbered the symbols we know where the - undefined symbols live in the table. Check the reloc - entries for symbols who's output bfd isn't the right one. - This is because the symbol was undefined (which means - that all the pointers are never made to point to the same - place). This is a bad thing,'cause the symbols attached - to the output bfd are indexed, so that the relocation - entries know which symbol index they point to. So we - have to look up the output symbol here. */ - - if (q->sym_ptr_ptr[0]->the_bfd != abfd) - { - int i; - const char *sname = q->sym_ptr_ptr[0]->name; - asymbol **outsyms = abfd->outsymbols; - for (i = first_undef; outsyms[i]; i++) - { - const char *intable = outsyms[i]->name; - if (strcmp (intable, sname) == 0) { - /* got a hit, so repoint the reloc */ - q->sym_ptr_ptr = outsyms + i; - break; - } - } - } - - n.r_vaddr = q->address + s->vma; - -#ifdef R_IHCONST - /* The 29k const/consth reloc pair is a real kludge. The consth - part doesn't have a symbol; it has an offset. So rebuilt - that here. */ - if (q->howto->type == R_IHCONST) - n.r_symndx = q->addend; - else -#endif - if (q->sym_ptr_ptr) - { - if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr) - /* This is a relocation relative to the absolute symbol. */ - n.r_symndx = -1; - else - { - n.r_symndx = get_index ((*(q->sym_ptr_ptr))); - /* Take notice if the symbol reloc points to a symbol - we don't have in our symbol table. What should we - do for this?? */ - if (n.r_symndx > obj_conv_table_size (abfd)) - abort (); - } - } - -#ifdef SWAP_OUT_RELOC_OFFSET - n.r_offset = q->addend; -#endif - -#ifdef SELECT_RELOC - /* Work out reloc type from what is required */ - SELECT_RELOC (n, q->howto); -#else - n.r_type = q->howto->type; -#endif - coff_swap_reloc_out (abfd, &n, &dst); - if (bfd_write ((PTR) & dst, 1, RELSZ, abfd) != RELSZ) - return false; - } - -#ifdef TARG_AUX - if (p != NULL) - free (p); -#endif - } - - return true; -} - -/* Set flags and magic number of a coff file from architecture and machine - type. Result is true if we can represent the arch&type, false if not. */ - -static boolean -coff_set_flags (abfd, magicp, flagsp) - bfd * abfd; - unsigned int *magicp; - unsigned short *flagsp; -{ - switch (bfd_get_arch (abfd)) - { -#ifdef Z8KMAGIC - case bfd_arch_z8k: - *magicp = Z8KMAGIC; - switch (bfd_get_mach (abfd)) - { - case bfd_mach_z8001: - *flagsp = F_Z8001; - break; - case bfd_mach_z8002: - *flagsp = F_Z8002; - break; - default: - return false; - } - return true; -#endif -#ifdef I960ROMAGIC - - case bfd_arch_i960: - - { - unsigned flags; - *magicp = I960ROMAGIC; - /* - ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : - I960RWMAGIC); FIXME??? - */ - switch (bfd_get_mach (abfd)) - { - case bfd_mach_i960_core: - flags = F_I960CORE; - break; - case bfd_mach_i960_kb_sb: - flags = F_I960KB; - break; - case bfd_mach_i960_mc: - flags = F_I960MC; - break; - case bfd_mach_i960_xa: - flags = F_I960XA; - break; - case bfd_mach_i960_ca: - flags = F_I960CA; - break; - case bfd_mach_i960_ka_sa: - flags = F_I960KA; - break; - case bfd_mach_i960_jx: - flags = F_I960JX; - break; - case bfd_mach_i960_hx: - flags = F_I960HX; - break; - default: - return false; - } - *flagsp = flags; - return true; - } - break; -#endif - -#ifdef TIC30MAGIC - case bfd_arch_tic30: - *magicp = TIC30MAGIC; - return true; -#endif -#ifdef TIC80_ARCH_MAGIC - case bfd_arch_tic80: - *magicp = TIC80_ARCH_MAGIC; - return true; -#endif -#ifdef ARMMAGIC - case bfd_arch_arm: - * magicp = ARMMAGIC; - * flagsp = 0; - if (APCS_SET (abfd)) - { - if (APCS_26_FLAG (abfd)) - * flagsp |= F_APCS26; - - if (APCS_FLOAT_FLAG (abfd)) - * flagsp |= F_APCS_FLOAT; - - if (PIC_FLAG (abfd)) - * flagsp |= F_PIC_INT; - } - if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd)) - * flagsp |= F_INTERWORK; - switch (bfd_get_mach (abfd)) - { - case bfd_mach_arm_2: * flagsp |= F_ARM_2; break; - case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break; - case bfd_mach_arm_3: * flagsp |= F_ARM_3; break; - case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break; - case bfd_mach_arm_4: * flagsp |= F_ARM_4; break; - case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break; - } - return true; -#endif -#ifdef PPCMAGIC - case bfd_arch_powerpc: - *magicp = PPCMAGIC; - return true; - break; -#endif -#ifdef I386MAGIC - case bfd_arch_i386: - *magicp = I386MAGIC; -#ifdef LYNXOS - /* Just overwrite the usual value if we're doing Lynx. */ - *magicp = LYNXCOFFMAGIC; -#endif - return true; - break; -#endif -#ifdef I860MAGIC - case bfd_arch_i860: - *magicp = I860MAGIC; - return true; - break; -#endif -#ifdef MC68MAGIC - case bfd_arch_m68k: -#ifdef APOLLOM68KMAGIC - *magicp = APOLLO_COFF_VERSION_NUMBER; -#else - /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */ -#ifdef NAMES_HAVE_UNDERSCORE - *magicp = MC68KBCSMAGIC; -#else - *magicp = MC68MAGIC; -#endif -#endif -#ifdef LYNXOS - /* Just overwrite the usual value if we're doing Lynx. */ - *magicp = LYNXCOFFMAGIC; -#endif - return true; - break; -#endif - -#ifdef MC88MAGIC - case bfd_arch_m88k: - *magicp = MC88OMAGIC; - return true; - break; -#endif -#ifdef H8300MAGIC - case bfd_arch_h8300: - switch (bfd_get_mach (abfd)) - { - case bfd_mach_h8300: - *magicp = H8300MAGIC; - return true; - case bfd_mach_h8300h: - *magicp = H8300HMAGIC; - return true; - case bfd_mach_h8300s: - *magicp = H8300SMAGIC; - return true; - } - break; -#endif - -#ifdef SH_ARCH_MAGIC_BIG - case bfd_arch_sh: - if (bfd_big_endian (abfd)) - *magicp = SH_ARCH_MAGIC_BIG; - else - *magicp = SH_ARCH_MAGIC_LITTLE; - return true; - break; -#endif - -#ifdef SPARCMAGIC - case bfd_arch_sparc: - *magicp = SPARCMAGIC; -#ifdef LYNXOS - /* Just overwrite the usual value if we're doing Lynx. */ - *magicp = LYNXCOFFMAGIC; -#endif - return true; - break; -#endif - -#ifdef H8500MAGIC - case bfd_arch_h8500: - *magicp = H8500MAGIC; - return true; - break; -#endif -#ifdef A29K_MAGIC_BIG - case bfd_arch_a29k: - if (bfd_big_endian (abfd)) - *magicp = A29K_MAGIC_BIG; - else - *magicp = A29K_MAGIC_LITTLE; - return true; - break; -#endif - -#ifdef WE32KMAGIC - case bfd_arch_we32k: - *magicp = WE32KMAGIC; - return true; - break; -#endif - -#ifdef U802TOCMAGIC - case bfd_arch_rs6000: -#ifndef PPCMAGIC - case bfd_arch_powerpc: -#endif - *magicp = U802TOCMAGIC; - return true; - break; -#endif - -#ifdef MCOREMAGIC - case bfd_arch_mcore: - * magicp = MCOREMAGIC; - return true; -#endif - - default: /* Unknown architecture */ - /* return false; -- fall through to "return false" below, to avoid - "statement never reached" errors on the one below. */ - break; - } - - return false; -} - - -static boolean -coff_set_arch_mach (abfd, arch, machine) - bfd * abfd; - enum bfd_architecture arch; - unsigned long machine; -{ - unsigned dummy1; - unsigned short dummy2; - - if (! bfd_default_set_arch_mach (abfd, arch, machine)) - return false; - - if (arch != bfd_arch_unknown && - coff_set_flags (abfd, &dummy1, &dummy2) != true) - return false; /* We can't represent this type */ - - return true; /* We're easy ... */ -} - - -/* Calculate the file position for each section. */ - -#ifndef I960 -#define ALIGN_SECTIONS_IN_FILE -#endif -#ifdef TIC80COFF -#undef ALIGN_SECTIONS_IN_FILE -#endif - -static boolean -coff_compute_section_file_positions (abfd) - bfd * abfd; -{ - asection *current; - asection *previous = (asection *) NULL; - file_ptr sofar = FILHSZ; - boolean align_adjust; - unsigned int count; -#ifdef ALIGN_SECTIONS_IN_FILE - file_ptr old_sofar; -#endif - -#ifdef RS6000COFF_C - /* On XCOFF, if we have symbols, set up the .debug section. */ - if (bfd_get_symcount (abfd) > 0) - { - bfd_size_type sz; - bfd_size_type i, symcount; - asymbol **symp; - - sz = 0; - symcount = bfd_get_symcount (abfd); - for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++) - { - coff_symbol_type *cf; - - cf = coff_symbol_from (abfd, *symp); - if (cf != NULL - && cf->native != NULL - && SYMNAME_IN_DEBUG (&cf->native->u.syment)) - { - size_t len; - - len = strlen (bfd_asymbol_name (*symp)); - if (len > SYMNMLEN) - sz += len + 3; - } - } - if (sz > 0) - { - asection *dsec; - - dsec = bfd_make_section_old_way (abfd, ".debug"); - if (dsec == NULL) - abort (); - dsec->_raw_size = sz; - dsec->flags |= SEC_HAS_CONTENTS; - } - } -#endif - -#ifdef COFF_IMAGE_WITH_PE - int page_size; - if (coff_data (abfd)->link_info) - { - page_size = pe_data (abfd)->pe_opthdr.FileAlignment; - } - else - page_size = PE_DEF_FILE_ALIGNMENT; -#else -#ifdef COFF_PAGE_SIZE - int page_size = COFF_PAGE_SIZE; -#endif -#endif - - if (bfd_get_start_address (abfd)) - { - /* A start address may have been added to the original file. In this - case it will need an optional header to record it. */ - abfd->flags |= EXEC_P; - } - - if (abfd->flags & EXEC_P) - sofar += AOUTSZ; -#ifdef RS6000COFF_C - else if (xcoff_data (abfd)->full_aouthdr) - sofar += AOUTSZ; - else - sofar += SMALL_AOUTSZ; -#endif - - sofar += abfd->section_count * SCNHSZ; - -#ifdef RS6000COFF_C - /* XCOFF handles overflows in the reloc and line number count fields - by allocating a new section header to hold the correct counts. */ - for (current = abfd->sections; current != NULL; current = current->next) - if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) - sofar += SCNHSZ; -#endif - - align_adjust = false; - for (current = abfd->sections, count = 1; - current != (asection *) NULL; - current = current->next, ++count) - { -#ifdef COFF_IMAGE_WITH_PE - /* The NT loader does not want empty section headers, so we omit - them. We don't actually remove the section from the BFD, - although we probably should. This matches code in - coff_write_object_contents. */ - if (current->_raw_size == 0) - { - current->target_index = -1; - --count; - continue; - } -#endif - - current->target_index = count; - - /* Only deal with sections which have contents */ - if (!(current->flags & SEC_HAS_CONTENTS)) - continue; - - /* Align the sections in the file to the same boundary on - which they are aligned in virtual memory. I960 doesn't - do this (FIXME) so we can stay in sync with Intel. 960 - doesn't yet page from files... */ -#ifdef ALIGN_SECTIONS_IN_FILE - if ((abfd->flags & EXEC_P) != 0) - { - /* make sure this section is aligned on the right boundary - by - padding the previous section up if necessary */ - - old_sofar = sofar; - sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); - if (previous != (asection *) NULL) - { - previous->_raw_size += sofar - old_sofar; - } - } - -#endif - - /* In demand paged files the low order bits of the file offset - must match the low order bits of the virtual address. */ -#ifdef COFF_PAGE_SIZE - if ((abfd->flags & D_PAGED) != 0 - && (current->flags & SEC_ALLOC) != 0) - sofar += (current->vma - sofar) % page_size; -#endif - current->filepos = sofar; - -#ifdef COFF_IMAGE_WITH_PE - /* With PE we have to pad each section to be a multiple of its - page size too, and remember both sizes. */ - - if (coff_section_data (abfd, current) == NULL) - { - current->used_by_bfd = - (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata)); - if (current->used_by_bfd == NULL) - return false; - } - if (pei_section_data (abfd, current) == NULL) - { - coff_section_data (abfd, current)->tdata = - (PTR) bfd_zalloc (abfd, sizeof (struct pei_section_tdata)); - if (coff_section_data (abfd, current)->tdata == NULL) - return false; - } - if (pei_section_data (abfd, current)->virt_size == 0) - pei_section_data (abfd, current)->virt_size = current->_raw_size; - - current->_raw_size = (current->_raw_size + page_size -1) & -page_size; -#endif - - sofar += current->_raw_size; - -#ifdef ALIGN_SECTIONS_IN_FILE - /* make sure that this section is of the right size too */ - if ((abfd->flags & EXEC_P) == 0) - { - bfd_size_type old_size; - - old_size = current->_raw_size; - current->_raw_size = BFD_ALIGN (current->_raw_size, - 1 << current->alignment_power); - align_adjust = current->_raw_size != old_size; - sofar += current->_raw_size - old_size; - } - else - { - old_sofar = sofar; - sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); - align_adjust = sofar != old_sofar; - current->_raw_size += sofar - old_sofar; - } -#endif - -#ifdef COFF_IMAGE_WITH_PE - /* For PE we need to make sure we pad out to the aligned - _raw_size, in case the caller only writes out data to the - unaligned _raw_size. */ - if (pei_section_data (abfd, current)->virt_size < current->_raw_size) - align_adjust = true; -#endif - -#ifdef _LIB - /* Force .lib sections to start at zero. The vma is then - incremented in coff_set_section_contents. This is right for - SVR3.2. */ - if (strcmp (current->name, _LIB) == 0) - bfd_set_section_vma (abfd, current, 0); -#endif - - previous = current; - } - - /* It is now safe to write to the output file. If we needed an - alignment adjustment for the last section, then make sure that - there is a byte at offset sofar. If there are no symbols and no - relocs, then nothing follows the last section. If we don't force - the last byte out, then the file may appear to be truncated. */ - if (align_adjust) - { - bfd_byte b; - - b = 0; - if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0 - || bfd_write (&b, 1, 1, abfd) != 1) - return false; - } - - /* Make sure the relocations are aligned. We don't need to make - sure that this byte exists, because it will only matter if there - really are relocs. */ - sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER); - - obj_relocbase (abfd) = sofar; - abfd->output_has_begun = true; - - return true; -} - -#if 0 - -/* This can never work, because it is called too late--after the - section positions have been set. I can't figure out what it is - for, so I am going to disable it--Ian Taylor 20 March 1996. */ - -/* If .file, .text, .data, .bss symbols are missing, add them. */ -/* @@ Should we only be adding missing symbols, or overriding the aux - values for existing section symbols? */ -static boolean -coff_add_missing_symbols (abfd) - bfd *abfd; -{ - unsigned int nsyms = bfd_get_symcount (abfd); - asymbol **sympp = abfd->outsymbols; - asymbol **sympp2; - unsigned int i; - int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; - - for (i = 0; i < nsyms; i++) - { - coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); - CONST char *name; - if (csym) - { - /* only do this if there is a coff representation of the input - symbol */ - if (csym->native && csym->native->u.syment.n_sclass == C_FILE) - { - need_file = 0; - continue; - } - name = csym->symbol.name; - if (!name) - continue; - if (!strcmp (name, _TEXT)) - need_text = 0; -#ifdef APOLLO_M68 - else if (!strcmp (name, ".wtext")) - need_text = 0; -#endif - else if (!strcmp (name, _DATA)) - need_data = 0; - else if (!strcmp (name, _BSS)) - need_bss = 0; - } - } - /* Now i == bfd_get_symcount (abfd). */ - /* @@ For now, don't deal with .file symbol. */ - need_file = 0; - - if (!need_text && !need_data && !need_bss && !need_file) - return true; - nsyms += need_text + need_data + need_bss + need_file; - sympp2 = (asymbol **) bfd_alloc (abfd, nsyms * sizeof (asymbol *)); - if (!sympp2) - return false; - memcpy (sympp2, sympp, i * sizeof (asymbol *)); - if (need_file) - { - /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ - abort (); - } - if (need_text) - sympp2[i++] = coff_section_symbol (abfd, _TEXT); - if (need_data) - sympp2[i++] = coff_section_symbol (abfd, _DATA); - if (need_bss) - sympp2[i++] = coff_section_symbol (abfd, _BSS); - BFD_ASSERT (i == nsyms); - bfd_set_symtab (abfd, sympp2, nsyms); - return true; -} - -#endif /* 0 */ - -/* SUPPRESS 558 */ -/* SUPPRESS 529 */ -static boolean -coff_write_object_contents (abfd) - bfd * abfd; -{ - asection *current; - boolean hasrelocs = false; - boolean haslinno = false; - file_ptr scn_base; - file_ptr reloc_base; - file_ptr lineno_base; - file_ptr sym_base; - unsigned long reloc_size = 0; - unsigned long lnno_size = 0; - boolean long_section_names; - asection *text_sec = NULL; - asection *data_sec = NULL; - asection *bss_sec = NULL; - struct internal_filehdr internal_f; - struct internal_aouthdr internal_a; -#ifdef COFF_LONG_SECTION_NAMES - size_t string_size = STRING_SIZE_SIZE; -#endif - - bfd_set_error (bfd_error_system_call); - - /* Make a pass through the symbol table to count line number entries and - put them into the correct asections */ - - lnno_size = coff_count_linenumbers (abfd) * LINESZ; - - if (abfd->output_has_begun == false) - { - if (! coff_compute_section_file_positions (abfd)) - return false; - } - - reloc_base = obj_relocbase (abfd); - - /* Work out the size of the reloc and linno areas */ - - for (current = abfd->sections; current != NULL; current = - current->next) - reloc_size += current->reloc_count * RELSZ; - - lineno_base = reloc_base + reloc_size; - sym_base = lineno_base + lnno_size; - - /* Indicate in each section->line_filepos its actual file address */ - for (current = abfd->sections; current != NULL; current = - current->next) - { - if (current->lineno_count) - { - current->line_filepos = lineno_base; - current->moving_line_filepos = lineno_base; - lineno_base += current->lineno_count * LINESZ; - } - else - { - current->line_filepos = 0; - } - if (current->reloc_count) - { - current->rel_filepos = reloc_base; - reloc_base += current->reloc_count * RELSZ; - } - else - { - current->rel_filepos = 0; - } - } - - /* Write section headers to the file. */ - internal_f.f_nscns = 0; - - if ((abfd->flags & EXEC_P) != 0) - scn_base = FILHSZ + AOUTSZ; - else - { - scn_base = FILHSZ; -#ifdef RS6000COFF_C - if (xcoff_data (abfd)->full_aouthdr) - scn_base += AOUTSZ; - else - scn_base += SMALL_AOUTSZ; -#endif - } - - if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) - return false; - - long_section_names = false; - for (current = abfd->sections; - current != NULL; - current = current->next) - { - struct internal_scnhdr section; - -#ifdef COFF_WITH_PE - /* If we've got a .reloc section, remember. */ - -#ifdef COFF_IMAGE_WITH_PE - if (strcmp (current->name, ".reloc") == 0) - { - pe_data (abfd)->has_reloc_section = 1; - } -#endif - -#endif - internal_f.f_nscns++; - - strncpy (section.s_name, current->name, SCNNMLEN); - -#ifdef COFF_LONG_SECTION_NAMES - /* Handle long section names as in PE. This must be compatible - with the code in coff_write_symbols. */ - { - size_t len; - - len = strlen (current->name); - if (len > SCNNMLEN) - { - memset (section.s_name, 0, SCNNMLEN); - sprintf (section.s_name, "/%lu", (unsigned long) string_size); - string_size += len + 1; - long_section_names = true; - } - } -#endif - -#ifdef _LIB - /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 - Ian Taylor <ian@cygnus.com>. */ - if (strcmp (current->name, _LIB) == 0) - section.s_vaddr = 0; - else -#endif - section.s_vaddr = current->vma; - section.s_paddr = current->lma; - section.s_size = current->_raw_size; - -#ifdef COFF_WITH_PE - section.s_paddr = 0; -#endif -#ifdef COFF_IMAGE_WITH_PE - /* Reminder: s_paddr holds the virtual size of the section. */ - if (coff_section_data (abfd, current) != NULL - && pei_section_data (abfd, current) != NULL) - section.s_paddr = pei_section_data (abfd, current)->virt_size; - else - section.s_paddr = 0; -#endif - - /* - If this section has no size or is unloadable then the scnptr - will be 0 too - */ - if (current->_raw_size == 0 || - (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) - { - section.s_scnptr = 0; - } - else - { - section.s_scnptr = current->filepos; - } - section.s_relptr = current->rel_filepos; - section.s_lnnoptr = current->line_filepos; - section.s_nreloc = current->reloc_count; - section.s_nlnno = current->lineno_count; - if (current->reloc_count != 0) - hasrelocs = true; - if (current->lineno_count != 0) - haslinno = true; - -#ifdef RS6000COFF_C - /* Indicate the use of an XCOFF overflow section header. */ - if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) - { - section.s_nreloc = 0xffff; - section.s_nlnno = 0xffff; - } -#endif - - section.s_flags = sec_to_styp_flags (current->name, current->flags); - - if (!strcmp (current->name, _TEXT)) - { - text_sec = current; - } - else if (!strcmp (current->name, _DATA)) - { - data_sec = current; - } - else if (!strcmp (current->name, _BSS)) - { - bss_sec = current; - } - -#ifdef I960 - section.s_align = (current->alignment_power - ? 1 << current->alignment_power - : 0); -#else -#ifdef TIC80COFF - section.s_flags |= (current->alignment_power & 0xF) << 8; -#endif -#endif - -#ifdef COFF_IMAGE_WITH_PE - /* suppress output of the sections if they are null. ld includes - the bss and data sections even if there is no size assigned - to them. NT loader doesn't like it if these section headers are - included if the sections themselves are not needed */ - if (section.s_size == 0) - internal_f.f_nscns--; - else -#endif - { - SCNHDR buff; - if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 - || bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ) - return false; - } - -#ifdef COFF_WITH_PE - /* PE stores COMDAT section information in the symbol table. If - this section is supposed to have some COMDAT info, track down - the symbol in the symbol table and modify it. */ - if ((current->flags & SEC_LINK_ONCE) != 0) - { - unsigned int i, count; - asymbol **psym; - coff_symbol_type *csym = NULL; - asymbol **psymsec; - - psymsec = NULL; - count = bfd_get_symcount (abfd); - for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++) - { - if ((*psym)->section != current) - continue; - - /* Remember the location of the first symbol in this - section. */ - if (psymsec == NULL) - psymsec = psym; - - /* See if this is the section symbol. */ - if (strcmp ((*psym)->name, current->name) == 0) - { - csym = coff_symbol_from (abfd, *psym); - if (csym == NULL - || csym->native == NULL - || csym->native->u.syment.n_numaux < 1 - || csym->native->u.syment.n_sclass != C_STAT - || csym->native->u.syment.n_type != T_NULL) - continue; - - /* Here *PSYM is the section symbol for CURRENT. */ - - break; - } - } - - /* Did we find it? - Note that we might not if we're converting the file from - some other object file format. */ - if (i < count) - { - combined_entry_type *aux; - - /* We don't touch the x_checksum field. The - x_associated field is not currently supported. */ - - aux = csym->native + 1; - switch (current->flags & SEC_LINK_DUPLICATES) - { - case SEC_LINK_DUPLICATES_DISCARD: - aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY; - break; - - case SEC_LINK_DUPLICATES_ONE_ONLY: - aux->u.auxent.x_scn.x_comdat = - IMAGE_COMDAT_SELECT_NODUPLICATES; - break; - - case SEC_LINK_DUPLICATES_SAME_SIZE: - aux->u.auxent.x_scn.x_comdat = - IMAGE_COMDAT_SELECT_SAME_SIZE; - break; - - case SEC_LINK_DUPLICATES_SAME_CONTENTS: - aux->u.auxent.x_scn.x_comdat = - IMAGE_COMDAT_SELECT_EXACT_MATCH; - break; - } - - /* The COMDAT symbol must be the first symbol from this - section in the symbol table. In order to make this - work, we move the COMDAT symbol before the first - symbol we found in the search above. It's OK to - rearrange the symbol table at this point, because - coff_renumber_symbols is going to rearrange it - further and fix up all the aux entries. */ - if (psym != psymsec) - { - asymbol *hold; - asymbol **pcopy; - - hold = *psym; - for (pcopy = psym; pcopy > psymsec; pcopy--) - pcopy[0] = pcopy[-1]; - *psymsec = hold; - } - } - } -#endif /* COFF_WITH_PE */ - } - -#ifdef RS6000COFF_C - /* XCOFF handles overflows in the reloc and line number count fields - by creating a new section header to hold the correct values. */ - for (current = abfd->sections; current != NULL; current = current->next) - { - if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) - { - struct internal_scnhdr scnhdr; - SCNHDR buff; - - internal_f.f_nscns++; - strncpy (&(scnhdr.s_name[0]), current->name, 8); - scnhdr.s_paddr = current->reloc_count; - scnhdr.s_vaddr = current->lineno_count; - scnhdr.s_size = 0; - scnhdr.s_scnptr = 0; - scnhdr.s_relptr = current->rel_filepos; - scnhdr.s_lnnoptr = current->line_filepos; - scnhdr.s_nreloc = current->target_index; - scnhdr.s_nlnno = current->target_index; - scnhdr.s_flags = STYP_OVRFLO; - if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0 - || bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ) - return false; - } - } -#endif - - /* OK, now set up the filehdr... */ - - /* Don't include the internal abs section in the section count */ - - /* - We will NOT put a fucking timestamp in the header here. Every time you - put it back, I will come in and take it out again. I'm sorry. This - field does not belong here. We fill it with a 0 so it compares the - same but is not a reasonable time. -- gnu@cygnus.com - */ - internal_f.f_timdat = 0; - - internal_f.f_flags = 0; - - if (abfd->flags & EXEC_P) - internal_f.f_opthdr = AOUTSZ; - else - { - internal_f.f_opthdr = 0; -#ifdef RS6000COFF_C - if (xcoff_data (abfd)->full_aouthdr) - internal_f.f_opthdr = AOUTSZ; - else - internal_f.f_opthdr = SMALL_AOUTSZ; -#endif - } - - if (!hasrelocs) - internal_f.f_flags |= F_RELFLG; - if (!haslinno) - internal_f.f_flags |= F_LNNO; - if (abfd->flags & EXEC_P) - internal_f.f_flags |= F_EXEC; - - /* FIXME: this is wrong for PPC_PE! */ - if (bfd_little_endian (abfd)) - internal_f.f_flags |= F_AR32WR; - else - internal_f.f_flags |= F_AR32W; - -#ifdef TIC80_TARGET_ID - internal_f.f_target_id = TIC80_TARGET_ID; -#endif - - /* - FIXME, should do something about the other byte orders and - architectures. - */ - -#ifdef RS6000COFF_C - if ((abfd->flags & DYNAMIC) != 0) - internal_f.f_flags |= F_SHROBJ; - if (bfd_get_section_by_name (abfd, _LOADER) != NULL) - internal_f.f_flags |= F_DYNLOAD; -#endif - - memset (&internal_a, 0, sizeof internal_a); - - /* Set up architecture-dependent stuff */ - - { - unsigned int magic = 0; - unsigned short flags = 0; - coff_set_flags (abfd, &magic, &flags); - internal_f.f_magic = magic; - internal_f.f_flags |= flags; - /* ...and the "opt"hdr... */ - -#ifdef A29K -#ifdef ULTRA3 /* NYU's machine */ - /* FIXME: This is a bogus check. I really want to see if there - * is a .shbss or a .shdata section, if so then set the magic - * number to indicate a shared data executable. - */ - if (internal_f.f_nscns >= 7) - internal_a.magic = SHMAGIC; /* Shared magic */ - else -#endif /* ULTRA3 */ - internal_a.magic = NMAGIC; /* Assume separate i/d */ -#define __A_MAGIC_SET__ -#endif /* A29K */ -#ifdef TIC80COFF - internal_a.magic = TIC80_ARCH_MAGIC; -#define __A_MAGIC_SET__ -#endif /* TIC80 */ -#ifdef I860 - /* FIXME: What are the a.out magic numbers for the i860? */ - internal_a.magic = 0; -#define __A_MAGIC_SET__ -#endif /* I860 */ -#ifdef I960 - internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); -#define __A_MAGIC_SET__ -#endif /* I960 */ -#if M88 -#define __A_MAGIC_SET__ - internal_a.magic = PAGEMAGICBCS; -#endif /* M88 */ - -#if APOLLO_M68 -#define __A_MAGIC_SET__ - internal_a.magic = APOLLO_COFF_VERSION_NUMBER; -#endif - -#if defined(M68) || defined(WE32K) || defined(M68K) -#define __A_MAGIC_SET__ -#if defined(LYNXOS) - internal_a.magic = LYNXCOFFMAGIC; -#else -#if defined(TARG_AUX) - internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED : - abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED : - PAGEMAGICEXECSWAPPED); -#else -#if defined (PAGEMAGICPEXECPAGED) - internal_a.magic = PAGEMAGICPEXECPAGED; -#endif -#endif /* TARG_AUX */ -#endif /* LYNXOS */ -#endif /* M68 || WE32K || M68K */ - -#if defined(ARM) -#define __A_MAGIC_SET__ - internal_a.magic = ZMAGIC; -#endif - -#if defined(PPC_PE) -#define __A_MAGIC_SET__ - internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; -#endif - -#if defined MCORE_PE -#define __A_MAGIC_SET__ - internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; -#endif - -#if defined(I386) -#define __A_MAGIC_SET__ -#if defined(LYNXOS) - internal_a.magic = LYNXCOFFMAGIC; -#else /* LYNXOS */ - internal_a.magic = ZMAGIC; -#endif /* LYNXOS */ -#endif /* I386 */ - -#if defined(SPARC) -#define __A_MAGIC_SET__ -#if defined(LYNXOS) - internal_a.magic = LYNXCOFFMAGIC; -#endif /* LYNXOS */ -#endif /* SPARC */ - -#ifdef RS6000COFF_C -#define __A_MAGIC_SET__ - internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : - (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : - RS6K_AOUTHDR_OMAGIC; -#endif - -#ifndef __A_MAGIC_SET__ -#include "Your aouthdr magic number is not being set!" -#else -#undef __A_MAGIC_SET__ -#endif - } - - /* FIXME: Does anybody ever set this to another value? */ - internal_a.vstamp = 0; - - /* Now should write relocs, strings, syms */ - obj_sym_filepos (abfd) = sym_base; - - if (bfd_get_symcount (abfd) != 0) - { - int firstundef; -#if 0 - if (!coff_add_missing_symbols (abfd)) - return false; -#endif - if (!coff_renumber_symbols (abfd, &firstundef)) - return false; - coff_mangle_symbols (abfd); - if (! coff_write_symbols (abfd)) - return false; - if (! coff_write_linenumbers (abfd)) - return false; - if (! coff_write_relocs (abfd, firstundef)) - return false; - } -#ifdef COFF_LONG_SECTION_NAMES - else if (long_section_names) - { - /* If we have long section names we have to write out the string - table even if there are no symbols. */ - if (! coff_write_symbols (abfd)) - return false; - } -#endif -#ifdef COFF_IMAGE_WITH_PE -#ifdef PPC_PE - else if ((abfd->flags & EXEC_P) != 0) - { - bfd_byte b; - - /* PowerPC PE appears to require that all executable files be - rounded up to the page size. */ - b = 0; - if (bfd_seek (abfd, - BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1, - SEEK_SET) != 0 - || bfd_write (&b, 1, 1, abfd) != 1) - return false; - } -#endif -#endif - - /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF - backend linker, and obj_raw_syment_count is not valid until after - coff_write_symbols is called. */ - if (obj_raw_syment_count (abfd) != 0) - { - internal_f.f_symptr = sym_base; -#ifdef RS6000COFF_C - /* AIX appears to require that F_RELFLG not be set if there are - local symbols but no relocations. */ - internal_f.f_flags &=~ F_RELFLG; -#endif - } - else - { - if (long_section_names) - internal_f.f_symptr = sym_base; - else - internal_f.f_symptr = 0; - internal_f.f_flags |= F_LSYMS; - } - - if (text_sec) - { - internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); - internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; - } - if (data_sec) - { - internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); - internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; - } - if (bss_sec) - { - internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); - if (internal_a.bsize && bss_sec->vma < internal_a.data_start) - internal_a.data_start = bss_sec->vma; - } - - internal_a.entry = bfd_get_start_address (abfd); - internal_f.f_nsyms = obj_raw_syment_count (abfd); - -#ifdef RS6000COFF_C - if (xcoff_data (abfd)->full_aouthdr) - { - bfd_vma toc; - asection *loader_sec; - - internal_a.vstamp = 1; - - internal_a.o_snentry = xcoff_data (abfd)->snentry; - if (internal_a.o_snentry == 0) - internal_a.entry = (bfd_vma) -1; - - if (text_sec != NULL) - { - internal_a.o_sntext = text_sec->target_index; - internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); - } - else - { - internal_a.o_sntext = 0; - internal_a.o_algntext = 0; - } - if (data_sec != NULL) - { - internal_a.o_sndata = data_sec->target_index; - internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); - } - else - { - internal_a.o_sndata = 0; - internal_a.o_algndata = 0; - } - loader_sec = bfd_get_section_by_name (abfd, ".loader"); - if (loader_sec != NULL) - internal_a.o_snloader = loader_sec->target_index; - else - internal_a.o_snloader = 0; - if (bss_sec != NULL) - internal_a.o_snbss = bss_sec->target_index; - else - internal_a.o_snbss = 0; - - toc = xcoff_data (abfd)->toc; - internal_a.o_toc = toc; - internal_a.o_sntoc = xcoff_data (abfd)->sntoc; - - internal_a.o_modtype = xcoff_data (abfd)->modtype; - if (xcoff_data (abfd)->cputype != -1) - internal_a.o_cputype = xcoff_data (abfd)->cputype; - else - { - switch (bfd_get_arch (abfd)) - { - case bfd_arch_rs6000: - internal_a.o_cputype = 4; - break; - case bfd_arch_powerpc: - if (bfd_get_mach (abfd) == 0) - internal_a.o_cputype = 3; - else - internal_a.o_cputype = 1; - break; - default: - abort (); - } - } - internal_a.o_maxstack = xcoff_data (abfd)->maxstack; - internal_a.o_maxdata = xcoff_data (abfd)->maxdata; - } -#endif - - /* now write them */ - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) - return false; - { - char buff[FILHSZ]; - coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) buff); - if (bfd_write ((PTR) buff, 1, FILHSZ, abfd) != FILHSZ) - return false; - } - if (abfd->flags & EXEC_P) - { - /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR. - include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */ - char buff[AOUTSZ]; - coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) buff); - if (bfd_write ((PTR) buff, 1, AOUTSZ, abfd) != AOUTSZ) - return false; - } -#ifdef RS6000COFF_C - else - { - AOUTHDR buff; - size_t size; - - /* XCOFF seems to always write at least a small a.out header. */ - coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); - if (xcoff_data (abfd)->full_aouthdr) - size = AOUTSZ; - else - size = SMALL_AOUTSZ; - if (bfd_write ((PTR) &buff, 1, size, abfd) != size) - return false; - } -#endif - - return true; -} - -static boolean -coff_set_section_contents (abfd, section, location, offset, count) - bfd * abfd; - sec_ptr section; - PTR location; - file_ptr offset; - bfd_size_type count; -{ - if (abfd->output_has_begun == false) /* set by bfd.c handler */ - { - if (! coff_compute_section_file_positions (abfd)) - return false; - } - -#if defined(_LIB) && !defined(TARG_AUX) - - /* The physical address field of a .lib section is used to hold the - number of shared libraries in the section. This code counts the - number of sections being written, and increments the lma field - with the number. - - I have found no documentation on the contents of this section. - Experimentation indicates that the section contains zero or more - records, each of which has the following structure: - - - a (four byte) word holding the length of this record, in words, - - a word that always seems to be set to "2", - - the path to a shared library, null-terminated and then padded - to a whole word boundary. - - bfd_assert calls have been added to alert if an attempt is made - to write a section which doesn't follow these assumptions. The - code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe - <robertl@arnet.com> (Thanks!). - - Gvran Uddeborg <gvran@uddeborg.pp.se> */ - - if (strcmp (section->name, _LIB) == 0) - { - bfd_byte *rec, *recend; - - rec = (bfd_byte *) location; - recend = rec + count; - while (rec < recend) - { - ++section->lma; - rec += bfd_get_32 (abfd, rec) * 4; - } - - BFD_ASSERT (rec == recend); - } - -#endif - - /* Don't write out bss sections - one way to do this is to - see if the filepos has not been set. */ - if (section->filepos == 0) - return true; - - if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0) - return false; - - if (count != 0) - { - return (bfd_write (location, 1, count, abfd) == count) ? true : false; - } - return true; -} -#if 0 -static boolean -coff_close_and_cleanup (abfd) - bfd *abfd; -{ - if (!bfd_read_p (abfd)) - switch (abfd->format) - { - case bfd_archive: - if (!_bfd_write_archive_contents (abfd)) - return false; - break; - case bfd_object: - if (!coff_write_object_contents (abfd)) - return false; - break; - default: - bfd_set_error (bfd_error_invalid_operation); - return false; - } - - /* We depend on bfd_close to free all the memory on the objalloc. */ - return true; -} - -#endif - -static PTR -buy_and_read (abfd, where, seek_direction, size) - bfd *abfd; - file_ptr where; - int seek_direction; - size_t size; -{ - PTR area = (PTR) bfd_alloc (abfd, size); - if (!area) - return (NULL); - if (bfd_seek (abfd, where, seek_direction) != 0 - || bfd_read (area, 1, size, abfd) != size) - return (NULL); - return (area); -} /* buy_and_read() */ - -/* -SUBSUBSECTION - Reading linenumbers - - Creating the linenumber table is done by reading in the entire - coff linenumber table, and creating another table for internal use. - - A coff linenumber table is structured so that each function - is marked as having a line number of 0. Each line within the - function is an offset from the first line in the function. The - base of the line number information for the table is stored in - the symbol associated with the function. - - The information is copied from the external to the internal - table, and each symbol which marks a function is marked by - pointing its... - - How does this work ? - -*/ - -static boolean -coff_slurp_line_table (abfd, asect) - bfd *abfd; - asection *asect; -{ - LINENO *native_lineno; - alent *lineno_cache; - - BFD_ASSERT (asect->lineno == (alent *) NULL); - - native_lineno = (LINENO *) buy_and_read (abfd, - asect->line_filepos, - SEEK_SET, - (size_t) (LINESZ * - asect->lineno_count)); - lineno_cache = - (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent))); - if (lineno_cache == NULL) - return false; - else - { - unsigned int counter = 0; - alent *cache_ptr = lineno_cache; - LINENO *src = native_lineno; - - while (counter < asect->lineno_count) - { - struct internal_lineno dst; - coff_swap_lineno_in (abfd, src, &dst); - cache_ptr->line_number = dst.l_lnno; - - if (cache_ptr->line_number == 0) - { - boolean warned; - long symndx; - coff_symbol_type *sym; - - warned = false; - symndx = dst.l_addr.l_symndx; - if (symndx < 0 - || (unsigned long) symndx >= obj_raw_syment_count (abfd)) - { - (*_bfd_error_handler) - (_("%s: warning: illegal symbol index %ld in line numbers"), - bfd_get_filename (abfd), dst.l_addr.l_symndx); - symndx = 0; - warned = true; - } - /* FIXME: We should not be casting between ints and - pointers like this. */ - sym = ((coff_symbol_type *) - ((symndx + obj_raw_syments (abfd)) - ->u.syment._n._n_n._n_zeroes)); - cache_ptr->u.sym = (asymbol *) sym; - if (sym->lineno != NULL && ! warned) - { - (*_bfd_error_handler) - (_("%s: warning: duplicate line number information for `%s'"), - bfd_get_filename (abfd), - bfd_asymbol_name (&sym->symbol)); - } - sym->lineno = cache_ptr; - } - else - { - cache_ptr->u.offset = dst.l_addr.l_paddr - - bfd_section_vma (abfd, asect); - } /* If no linenumber expect a symbol index */ - - cache_ptr++; - src++; - counter++; - } - cache_ptr->line_number = 0; - - } - asect->lineno = lineno_cache; - /* FIXME, free native_lineno here, or use alloca or something. */ - return true; -} - -static boolean -coff_slurp_symbol_table (abfd) - bfd * abfd; -{ - combined_entry_type *native_symbols; - coff_symbol_type *cached_area; - unsigned int *table_ptr; - - unsigned int number_of_symbols = 0; - - if (obj_symbols (abfd)) - return true; - - /* Read in the symbol table */ - if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) - { - return (false); - } /* on error */ - - /* Allocate enough room for all the symbols in cached form */ - cached_area = ((coff_symbol_type *) - bfd_alloc (abfd, - (obj_raw_syment_count (abfd) - * sizeof (coff_symbol_type)))); - - if (cached_area == NULL) - return false; - table_ptr = ((unsigned int *) - bfd_alloc (abfd, - (obj_raw_syment_count (abfd) - * sizeof (unsigned int)))); - - if (table_ptr == NULL) - return false; - else - { - coff_symbol_type *dst = cached_area; - unsigned int last_native_index = obj_raw_syment_count (abfd); - unsigned int this_index = 0; - while (this_index < last_native_index) - { - combined_entry_type *src = native_symbols + this_index; - table_ptr[this_index] = number_of_symbols; - dst->symbol.the_bfd = abfd; - - dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); - /* We use the native name field to point to the cached field. */ - src->u.syment._n._n_n._n_zeroes = (long) dst; - dst->symbol.section = coff_section_from_bfd_index (abfd, - src->u.syment.n_scnum); - dst->symbol.flags = 0; - dst->done_lineno = false; - - switch (src->u.syment.n_sclass) - { -#ifdef I960 - case C_LEAFEXT: -#if 0 - dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; - dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; - dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; -#endif - /* Fall through to next case */ - -#endif - - case C_EXT: - case C_WEAKEXT: -#if defined ARM - case C_THUMBEXT: - case C_THUMBEXTFUNC: -#endif -#ifdef RS6000COFF_C - case C_HIDEXT: -#endif -#ifdef C_SYSTEM - case C_SYSTEM: /* System Wide variable */ -#endif -#ifdef COFF_WITH_PE - /* PE uses storage class 0x68 to denote a section symbol */ - case C_SECTION: - /* PE uses storage class 0x69 for a weak external symbol. */ - case C_NT_WEAK: -#endif - if ((src->u.syment.n_scnum) == 0) - { - if ((src->u.syment.n_value) == 0) - { - dst->symbol.section = bfd_und_section_ptr; - dst->symbol.value = 0; - } - else - { - dst->symbol.section = bfd_com_section_ptr; - dst->symbol.value = (src->u.syment.n_value); - } - } - else - { - /* Base the value as an index from the base of the - section */ - - dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; - -#if defined COFF_WITH_PE - /* PE sets the symbol to a value relative to the - start of the section. */ - dst->symbol.value = src->u.syment.n_value; -#else - dst->symbol.value = (src->u.syment.n_value - - dst->symbol.section->vma); -#endif - - if (ISFCN ((src->u.syment.n_type))) - { - /* A function ext does not go at the end of a - file. */ - dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; - } - } - -#ifdef RS6000COFF_C - /* A C_HIDEXT symbol is not global. */ - if (src->u.syment.n_sclass == C_HIDEXT) - dst->symbol.flags = BSF_LOCAL; - /* A symbol with a csect entry should not go at the end. */ - if (src->u.syment.n_numaux > 0) - dst->symbol.flags |= BSF_NOT_AT_END; -#endif - -#ifdef COFF_WITH_PE - if (src->u.syment.n_sclass == C_NT_WEAK) - dst->symbol.flags = BSF_WEAK; -#endif - - if (src->u.syment.n_sclass == C_WEAKEXT) - dst->symbol.flags = BSF_WEAK; - - break; - - case C_STAT: /* static */ -#ifdef I960 - case C_LEAFSTAT: /* static leaf procedure */ -#endif -#if defined ARM - case C_THUMBSTAT: /* Thumb static */ - case C_THUMBLABEL: /* Thumb label */ - case C_THUMBSTATFUNC:/* Thumb static function */ -#endif - case C_LABEL: /* label */ - if (src->u.syment.n_scnum == -2) - dst->symbol.flags = BSF_DEBUGGING; - else - dst->symbol.flags = BSF_LOCAL; - - /* Base the value as an index from the base of the - section, if there is one. */ - if (dst->symbol.section) - { -#if defined COFF_WITH_PE - /* PE sets the symbol to a value relative to the - start of the section. */ - dst->symbol.value = src->u.syment.n_value; -#else - dst->symbol.value = (src->u.syment.n_value - - dst->symbol.section->vma); -#endif - } - else - dst->symbol.value = src->u.syment.n_value; - break; - - case C_MOS: /* member of structure */ - case C_EOS: /* end of structure */ -#ifdef NOTDEF /* C_AUTOARG has the same value */ -#ifdef C_GLBLREG - case C_GLBLREG: /* A29k-specific storage class */ -#endif -#endif - case C_REGPARM: /* register parameter */ - case C_REG: /* register variable */ -#ifndef TIC80COFF -#ifdef C_AUTOARG - case C_AUTOARG: /* 960-specific storage class */ -#endif -#endif - case C_TPDEF: /* type definition */ - case C_ARG: - case C_AUTO: /* automatic variable */ - case C_FIELD: /* bit field */ - case C_ENTAG: /* enumeration tag */ - case C_MOE: /* member of enumeration */ - case C_MOU: /* member of union */ - case C_UNTAG: /* union tag */ - dst->symbol.flags = BSF_DEBUGGING; - dst->symbol.value = (src->u.syment.n_value); - break; - - case C_FILE: /* file name */ - case C_STRTAG: /* structure tag */ -#ifdef RS6000COFF_C - case C_GSYM: - case C_LSYM: - case C_PSYM: - case C_RSYM: - case C_RPSYM: - case C_STSYM: - case C_BCOMM: - case C_ECOMM: - case C_DECL: - case C_ENTRY: - case C_FUN: - case C_ESTAT: -#endif - dst->symbol.flags = BSF_DEBUGGING; - dst->symbol.value = (src->u.syment.n_value); - break; - -#ifdef RS6000COFF_C - case C_BINCL: /* beginning of include file */ - case C_EINCL: /* ending of include file */ - /* The value is actually a pointer into the line numbers - of the file. We locate the line number entry, and - set the section to the section which contains it, and - the value to the index in that section. */ - { - asection *sec; - - dst->symbol.flags = BSF_DEBUGGING; - for (sec = abfd->sections; sec != NULL; sec = sec->next) - if (sec->line_filepos <= (file_ptr) src->u.syment.n_value - && ((file_ptr) (sec->line_filepos - + sec->lineno_count * LINESZ) - > (file_ptr) src->u.syment.n_value)) - break; - if (sec == NULL) - dst->symbol.value = 0; - else - { - dst->symbol.section = sec; - dst->symbol.value = ((src->u.syment.n_value - - sec->line_filepos) - / LINESZ); - src->fix_line = 1; - } - } - break; - - case C_BSTAT: - dst->symbol.flags = BSF_DEBUGGING; - - /* The value is actually a symbol index. Save a pointer - to the symbol instead of the index. FIXME: This - should use a union. */ - src->u.syment.n_value = - (long) (native_symbols + src->u.syment.n_value); - dst->symbol.value = src->u.syment.n_value; - src->fix_value = 1; - break; -#endif - - case C_BLOCK: /* ".bb" or ".eb" */ - case C_FCN: /* ".bf" or ".ef" */ - case C_EFCN: /* physical end of function */ - dst->symbol.flags = BSF_LOCAL; -#if defined COFF_WITH_PE - /* PE sets the symbol to a value relative to the start - of the section. */ - dst->symbol.value = src->u.syment.n_value; -#else - /* Base the value as an index from the base of the - section. */ - dst->symbol.value = (src->u.syment.n_value - - dst->symbol.section->vma); -#endif - break; - - case C_NULL: - case C_EXTDEF: /* external definition */ - case C_ULABEL: /* undefined label */ - case C_USTATIC: /* undefined static */ -#ifndef COFF_WITH_PE - /* C_LINE in regular coff is 0x68. NT has taken over this storage - class to represent a section symbol */ - case C_LINE: /* line # reformatted as symbol table entry */ - /* NT uses 0x67 for a weak symbol, not C_ALIAS. */ - case C_ALIAS: /* duplicate tag */ -#endif - /* New storage classes for TIc80 */ -#ifdef TIC80COFF - case C_UEXT: /* Tentative external definition */ -#endif - case C_STATLAB: /* Static load time label */ - case C_EXTLAB: /* External load time label */ - case C_HIDDEN: /* ext symbol in dmert public lib */ - default: - (*_bfd_error_handler) - (_("%s: Unrecognized storage class %d for %s symbol `%s'"), - bfd_get_filename (abfd), src->u.syment.n_sclass, - dst->symbol.section->name, dst->symbol.name); - dst->symbol.flags = BSF_DEBUGGING; - dst->symbol.value = (src->u.syment.n_value); - break; - } - -/* BFD_ASSERT(dst->symbol.flags != 0);*/ - - dst->native = src; - - dst->symbol.udata.i = 0; - dst->lineno = (alent *) NULL; - this_index += (src->u.syment.n_numaux) + 1; - dst++; - number_of_symbols++; - } /* walk the native symtab */ - } /* bfdize the native symtab */ - - obj_symbols (abfd) = cached_area; - obj_raw_syments (abfd) = native_symbols; - - bfd_get_symcount (abfd) = number_of_symbols; - obj_convert (abfd) = table_ptr; - /* Slurp the line tables for each section too */ - { - asection *p; - p = abfd->sections; - while (p) - { - coff_slurp_line_table (abfd, p); - p = p->next; - } - } - return true; -} /* coff_slurp_symbol_table() */ - -/* Check whether a symbol is globally visible. This is used by the - COFF backend linker code in cofflink.c, since a couple of targets - have globally visible symbols which are not class C_EXT. This - function need not handle the case of n_class == C_EXT. */ - -#undef OTHER_GLOBAL_CLASS - -#ifdef I960 -#define OTHER_GLOBAL_CLASS C_LEAFEXT -#endif - -#ifdef COFFARM -#define OTHER_GLOBAL_CLASS C_THUMBEXT || syment->n_sclass == C_THUMBEXTFUNC -#else -#ifdef COFF_WITH_PE -#define OTHER_GLOBAL_CLASS C_SECTION -#endif -#endif - -#ifdef OTHER_GLOBAL_CLASS - -static boolean coff_sym_is_global PARAMS ((bfd *, struct internal_syment *)); - -static boolean -coff_sym_is_global (abfd, syment) - bfd * abfd; - struct internal_syment * syment; -{ - return (syment->n_sclass == OTHER_GLOBAL_CLASS); -} - -#undef OTHER_GLOBAL_CLASS - -#else /* ! defined (OTHER_GLOBAL_CLASS) */ - -/* sym_is_global should not be defined if it has nothing to do. */ - -#define coff_sym_is_global 0 - -#endif /* ! defined (OTHER_GLOBAL_CLASS) */ - -/* -SUBSUBSECTION - Reading relocations - - Coff relocations are easily transformed into the internal BFD form - (@code{arelent}). - - Reading a coff relocation table is done in the following stages: - - o Read the entire coff relocation table into memory. - - o Process each relocation in turn; first swap it from the - external to the internal form. - - o Turn the symbol referenced in the relocation's symbol index - into a pointer into the canonical symbol table. - This table is the same as the one returned by a call to - @code{bfd_canonicalize_symtab}. The back end will call that - routine and save the result if a canonicalization hasn't been done. - - o The reloc index is turned into a pointer to a howto - structure, in a back end specific way. For instance, the 386 - and 960 use the @code{r_type} to directly produce an index - into a howto table vector; the 88k subtracts a number from the - @code{r_type} field and creates an addend field. - - -*/ - -#ifndef CALC_ADDEND -#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ - { \ - coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ - if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ - coffsym = (obj_symbols (abfd) \ - + (cache_ptr->sym_ptr_ptr - symbols)); \ - else if (ptr) \ - coffsym = coff_symbol_from (abfd, ptr); \ - if (coffsym != (coff_symbol_type *) NULL \ - && coffsym->native->u.syment.n_scnum == 0) \ - cache_ptr->addend = 0; \ - else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ - && ptr->section != (asection *) NULL) \ - cache_ptr->addend = - (ptr->section->vma + ptr->value); \ - else \ - cache_ptr->addend = 0; \ - } -#endif - -static boolean -coff_slurp_reloc_table (abfd, asect, symbols) - bfd * abfd; - sec_ptr asect; - asymbol ** symbols; -{ - RELOC *native_relocs; - arelent *reloc_cache; - arelent *cache_ptr; - - unsigned int idx; - - if (asect->relocation) - return true; - if (asect->reloc_count == 0) - return true; - if (asect->flags & SEC_CONSTRUCTOR) - return true; - if (!coff_slurp_symbol_table (abfd)) - return false; - native_relocs = - (RELOC *) buy_and_read (abfd, - asect->rel_filepos, - SEEK_SET, - (size_t) (RELSZ * - asect->reloc_count)); - reloc_cache = (arelent *) - bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent))); - - if (reloc_cache == NULL) - return false; - - - for (idx = 0; idx < asect->reloc_count; idx++) - { - struct internal_reloc dst; - struct external_reloc *src; -#ifndef RELOC_PROCESSING - asymbol *ptr; -#endif - - cache_ptr = reloc_cache + idx; - src = native_relocs + idx; - - coff_swap_reloc_in (abfd, src, &dst); - -#ifdef RELOC_PROCESSING - RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); -#else - cache_ptr->address = dst.r_vaddr; - - if (dst.r_symndx != -1) - { - if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd)) - { - (*_bfd_error_handler) - (_("%s: warning: illegal symbol index %ld in relocs"), - bfd_get_filename (abfd), dst.r_symndx); - cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - ptr = NULL; - } - else - { - cache_ptr->sym_ptr_ptr = (symbols - + obj_convert (abfd)[dst.r_symndx]); - ptr = *(cache_ptr->sym_ptr_ptr); - } - } - else - { - cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - ptr = NULL; - } - - /* The symbols definitions that we have read in have been - relocated as if their sections started at 0. But the offsets - refering to the symbols in the raw data have not been - modified, so we have to have a negative addend to compensate. - - Note that symbols which used to be common must be left alone */ - - /* Calculate any reloc addend by looking at the symbol */ - CALC_ADDEND (abfd, ptr, dst, cache_ptr); - - cache_ptr->address -= asect->vma; -/* !! cache_ptr->section = (asection *) NULL;*/ - - /* Fill in the cache_ptr->howto field from dst.r_type */ - RTYPE2HOWTO (cache_ptr, &dst); -#endif /* RELOC_PROCESSING */ - - if (cache_ptr->howto == NULL) - { - (*_bfd_error_handler) - (_("%s: illegal relocation type %d at address 0x%lx"), - bfd_get_filename (abfd), dst.r_type, (long) dst.r_vaddr); - bfd_set_error (bfd_error_bad_value); - return false; - } - } - - asect->relocation = reloc_cache; - return true; -} - -#ifndef coff_rtype_to_howto -#ifdef RTYPE2HOWTO - -/* Get the howto structure for a reloc. This is only used if the file - including this one defines coff_relocate_section to be - _bfd_coff_generic_relocate_section, so it is OK if it does not - always work. It is the responsibility of the including file to - make sure it is reasonable if it is needed. */ - -static reloc_howto_type *coff_rtype_to_howto - PARAMS ((bfd *, asection *, struct internal_reloc *, - struct coff_link_hash_entry *, struct internal_syment *, - bfd_vma *)); - -/*ARGSUSED*/ -static reloc_howto_type * -coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp) - bfd *abfd; - asection *sec; - struct internal_reloc *rel; - struct coff_link_hash_entry *h; - struct internal_syment *sym; - bfd_vma *addendp; -{ - arelent genrel; - - RTYPE2HOWTO (&genrel, rel); - return genrel.howto; -} - -#else /* ! defined (RTYPE2HOWTO) */ - -#define coff_rtype_to_howto NULL - -#endif /* ! defined (RTYPE2HOWTO) */ -#endif /* ! defined (coff_rtype_to_howto) */ - -/* This is stupid. This function should be a boolean predicate. */ -static long -coff_canonicalize_reloc (abfd, section, relptr, symbols) - bfd * abfd; - sec_ptr section; - arelent ** relptr; - asymbol ** symbols; -{ - arelent *tblptr = section->relocation; - unsigned int count = 0; - - - if (section->flags & SEC_CONSTRUCTOR) - { - /* this section has relocs made up by us, they are not in the - file, so take them out of their chain and place them into - the data area provided */ - arelent_chain *chain = section->constructor_chain; - for (count = 0; count < section->reloc_count; count++) - { - *relptr++ = &chain->relent; - chain = chain->next; - } - - } - else - { - if (! coff_slurp_reloc_table (abfd, section, symbols)) - return -1; - - tblptr = section->relocation; - - for (; count++ < section->reloc_count;) - *relptr++ = tblptr++; - - - } - *relptr = 0; - return section->reloc_count; -} - -#ifdef GNU960 -file_ptr -coff_sym_filepos (abfd) - bfd *abfd; -{ - return obj_sym_filepos (abfd); -} -#endif - -#ifndef coff_reloc16_estimate -#define coff_reloc16_estimate dummy_reloc16_estimate - -static int dummy_reloc16_estimate - PARAMS ((bfd *, asection *, arelent *, unsigned int, - struct bfd_link_info *)); - -static int -dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) - bfd *abfd; - asection *input_section; - arelent *reloc; - unsigned int shrink; - struct bfd_link_info *link_info; -{ - abort (); -} - -#endif - -#ifndef coff_reloc16_extra_cases - -#define coff_reloc16_extra_cases dummy_reloc16_extra_cases - -/* This works even if abort is not declared in any header file. */ - -static void dummy_reloc16_extra_cases - PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, - bfd_byte *, unsigned int *, unsigned int *)); - -static void -dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, - dst_ptr) - bfd *abfd; - struct bfd_link_info *link_info; - struct bfd_link_order *link_order; - arelent *reloc; - bfd_byte *data; - unsigned int *src_ptr; - unsigned int *dst_ptr; -{ - abort (); -} -#endif - -/* If coff_relocate_section is defined, we can use the optimized COFF - backend linker. Otherwise we must continue to use the old linker. */ -#ifdef coff_relocate_section -#ifndef coff_bfd_link_hash_table_create -#define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create -#endif -#ifndef coff_bfd_link_add_symbols -#define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols -#endif -#ifndef coff_bfd_final_link -#define coff_bfd_final_link _bfd_coff_final_link -#endif -#else /* ! defined (coff_relocate_section) */ -#define coff_relocate_section NULL -#ifndef coff_bfd_link_hash_table_create -#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create -#endif -#ifndef coff_bfd_link_add_symbols -#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols -#endif -#define coff_bfd_final_link _bfd_generic_final_link -#endif /* ! defined (coff_relocate_section) */ - -#define coff_bfd_link_split_section _bfd_generic_link_split_section - -#ifndef coff_start_final_link -#define coff_start_final_link NULL -#endif - -#ifndef coff_adjust_symndx -#define coff_adjust_symndx NULL -#endif - -#ifndef coff_link_add_one_symbol -#define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol -#endif - -#ifndef coff_link_output_has_begun - -static boolean coff_link_output_has_begun - PARAMS ((bfd *, struct coff_final_link_info *)); - -static boolean -coff_link_output_has_begun (abfd, info) - bfd * abfd; - struct coff_final_link_info * info; -{ - return abfd->output_has_begun; -} -#endif - -#ifndef coff_final_link_postscript - -static boolean coff_final_link_postscript - PARAMS ((bfd *, struct coff_final_link_info *)); - -static boolean -coff_final_link_postscript (abfd, pfinfo) - bfd * abfd; - struct coff_final_link_info * pfinfo; -{ - return true; -} -#endif - -#ifndef coff_SWAP_aux_in -#define coff_SWAP_aux_in coff_swap_aux_in -#endif -#ifndef coff_SWAP_sym_in -#define coff_SWAP_sym_in coff_swap_sym_in -#endif -#ifndef coff_SWAP_lineno_in -#define coff_SWAP_lineno_in coff_swap_lineno_in -#endif -#ifndef coff_SWAP_aux_out -#define coff_SWAP_aux_out coff_swap_aux_out -#endif -#ifndef coff_SWAP_sym_out -#define coff_SWAP_sym_out coff_swap_sym_out -#endif -#ifndef coff_SWAP_lineno_out -#define coff_SWAP_lineno_out coff_swap_lineno_out -#endif -#ifndef coff_SWAP_reloc_out -#define coff_SWAP_reloc_out coff_swap_reloc_out -#endif -#ifndef coff_SWAP_filehdr_out -#define coff_SWAP_filehdr_out coff_swap_filehdr_out -#endif -#ifndef coff_SWAP_aouthdr_out -#define coff_SWAP_aouthdr_out coff_swap_aouthdr_out -#endif -#ifndef coff_SWAP_scnhdr_out -#define coff_SWAP_scnhdr_out coff_swap_scnhdr_out -#endif -#ifndef coff_SWAP_reloc_in -#define coff_SWAP_reloc_in coff_swap_reloc_in -#endif -#ifndef coff_SWAP_filehdr_in -#define coff_SWAP_filehdr_in coff_swap_filehdr_in -#endif -#ifndef coff_SWAP_aouthdr_in -#define coff_SWAP_aouthdr_in coff_swap_aouthdr_in -#endif -#ifndef coff_SWAP_scnhdr_in -#define coff_SWAP_scnhdr_in coff_swap_scnhdr_in -#endif - - - -static CONST bfd_coff_backend_data bfd_coff_std_swap_table = -{ - coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, - coff_SWAP_aux_out, coff_SWAP_sym_out, - coff_SWAP_lineno_out, coff_SWAP_reloc_out, - coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, - coff_SWAP_scnhdr_out, - FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, -#ifdef COFF_LONG_FILENAMES - true, -#else - false, -#endif -#ifdef COFF_LONG_SECTION_NAMES - true, -#else - false, -#endif - COFF_DEFAULT_SECTION_ALIGNMENT_POWER, - coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, - coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, - coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, - coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, - coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, - coff_sym_is_global, coff_compute_section_file_positions, - coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, - coff_adjust_symndx, coff_link_add_one_symbol, - coff_link_output_has_begun, coff_final_link_postscript -}; - -#ifndef coff_close_and_cleanup -#define coff_close_and_cleanup _bfd_generic_close_and_cleanup -#endif - -#ifndef coff_bfd_free_cached_info -#define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info -#endif - -#ifndef coff_get_section_contents -#define coff_get_section_contents _bfd_generic_get_section_contents -#endif - -#ifndef coff_bfd_copy_private_symbol_data -#define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data -#endif - -#ifndef coff_bfd_copy_private_section_data -#define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data -#endif - -#ifndef coff_bfd_copy_private_bfd_data -#define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data -#endif - -#ifndef coff_bfd_merge_private_bfd_data -#define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data -#endif - -#ifndef coff_bfd_set_private_flags -#define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags -#endif - -#ifndef coff_bfd_print_private_bfd_data -#define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data -#endif - -#ifndef coff_bfd_is_local_label_name -#define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name -#endif - -#ifndef coff_read_minisymbols -#define coff_read_minisymbols _bfd_generic_read_minisymbols -#endif - -#ifndef coff_minisymbol_to_symbol -#define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol -#endif - -/* The reloc lookup routine must be supplied by each individual COFF - backend. */ -#ifndef coff_bfd_reloc_type_lookup -#define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup -#endif - -#ifndef coff_bfd_get_relocated_section_contents -#define coff_bfd_get_relocated_section_contents \ - bfd_generic_get_relocated_section_contents -#endif - -#ifndef coff_bfd_relax_section -#define coff_bfd_relax_section bfd_generic_relax_section -#endif - -#ifndef coff_bfd_gc_sections -#define coff_bfd_gc_sections bfd_generic_gc_sections -#endif |